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RENTA Aritmética
Inmediata Temporal PrePagable |
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| C1 = C |
C2 = C+d |
C3 = C+2d |
··· |
Cn-2 = C+(n-3)d |
Cn-1 = C+(n-2)d |
Cn = C+(n-1)d |
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| - |
La descomponemos como suma de rentas
ctes, una de cuntía C y n-1 de cuantía d, |
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Valor actual |
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C1 |
C2 |
C3 |
Cn-2 |
Cn-1 |
Cn |
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Valor final |
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0 |
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1 |
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2 |
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n-3 |
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n-2 |
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n-1 |
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n |
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| R0 |
C···an | i |
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C |
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C |
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C |
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C |
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C |
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C |
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C···sn | i |
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0 |
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1 |
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2 |
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n-3 |
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n-2 |
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n-1 |
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n |
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| R1 |
d· 1/ ··an-1 | i |
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1 |
d |
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d |
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d |
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d |
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d |
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d· ··sn-1 | i |
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0 |
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1 |
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2 |
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n-3 |
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n-2 |
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n-1 |
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n |
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| R2 |
d· 2/ ··an-2 | i |
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2 |
d |
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d |
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d |
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d |
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d· ··sn-2 | i |
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0 |
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2 |
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n-3 |
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n-2 |
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n-1 |
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n |
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··· ··· |
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··· ··· ··· |
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··· ··· |
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| Rn-3 |
d· n-3/ ··a3 | i |
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n-3 |
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d |
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d |
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d |
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d· ··s3 | i |
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··· |
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0 |
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n-3 |
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n-2 |
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n-1 |
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n |
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| Rn-2 |
d· n-2/ ··a2 | i |
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n-2 |
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d |
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d |
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d· ··s2 | i |
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··· |
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0 |
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n-2 |
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n-1 |
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n |
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| Rn-1 |
d· n-1/ ··a1 | i |
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n-1 |
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d |
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d· ··s1 | i |
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··· |
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0 |
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n-1 |
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n |
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( ··V0)n | i = C···an | i + d·∑s1,n-1s / ··an-s | i |
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C···sn | i + d·∑s1,n-1 ··sn-s | i = ( ··Vn)n | i |
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VALOR Actual |
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| - |
( ··V0)n | i = C···an | i + d·∑s1,n-1s / ··an-s | i |
; |
ya sabemos que, |
··an | i = (1+i)·an | i |
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( ··V0)n | i = C·(1+i)·an | i + d·∑s1,n-1(1+i) s / an-s | i ; todos los sumandos
tienen el factor (1+i) |
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( ··V0)n | i = (1+i) [
C·an | i + d·∑s1,n-1s / an-s | i ] ; hemos sacado
factor común (1+i) |
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( ··V0)n | i = (1+i) ( V0)n | i |
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( ··V0)n | i = (1+i) [ (
C + d / i + d·n ) an
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+ d·n / i ] ; aplicamos la propiedad distributiva |
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( ··V0)n | i = ( C + d / i + d·n ) (1+i) an
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+ d·n·(1+i) / i |
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( ··V0)n | i = ( C + d / i + d·n ) ··an | i + d·n·(1+i) / i |
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| - |
( ··V0)n | i = (1+i) A(C;d)
n | i = ( C + d / i
+ d·n ) ··an | i - d·n·(1+i) / i = ··A(C;d) n | i |
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VALOR Final |
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| - |
( ··Vn)n | i = (1+i) · (
Vn) n | i = (1+i) [ (
C + d / i ) sn | i - d·n / i ] |
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| - |
( ··Vn)n | i = ( C + d / i ) (1+i) sn | i - d·n·(1+i) / i = ( C + d / i ) ··sn | i - d·n·(1+i)
/ i |
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| - |
( ··Vn)n | i = (1+i)n· ··A(C;d) n | i = ( C + d / i ) ··sn | i - d·n·(1+i)
/ i = ··S(C;d) n | i |
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