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A rich donor gives a hospital $ 960 comma 000 one year from today. Each year after​ that, the hospital will receive a payment 5 ​% larger than the previous​ payment, with the last payment occurring in ten​ years' time. What is the present value​ (PV) of this​ donation, given that the interest rate is 9 ​%?

Respuesta :

Answer:

$7,560,000

Explanation:

To solve this problem, the Present Value (PV) of a growing annuity formula is used.

The Present Value of a growing annuity is the current value of a series of payments which grows or diminishes at a constant rate each period.

The formula below represents the PV of a growing annuity:

[tex]PV=PMT *\frac{(1-(1+g)^{n}*(1+i)^{-n}) }{i-g}[/tex],  ............................................. (i)

where,

PV = Present Value = ?

PMT = Periodic Payment = $960,000

i = Interest Rate = 9% = 0.09

g = Growth Rate = 5% = 0.05

n = Number of periods = 10 years

Substituting these values in equation (i), we have

[tex]PV=960000*\frac{(1-(1+0.05)^{10}*(1+0.09)^{-10} }{0.09-0.05}[/tex]

[tex]PV=960000*\frac{(1-(1.05^{10})*(1.09)^{-10}) }{0.04}[/tex]

[tex]PV=960000*\frac{(1-(1.63*0.42))}{0.04}[/tex]

[tex]PV=960000*\frac{(1-0.685)}{0.04}[/tex]

[tex]PV=960000*\frac{0.315}{0.04}[/tex]

[tex]PV=960000*7.875[/tex]

[tex]PV=$7,560,000[/tex]

PV = $7,560,000