Finding the Fourth Proportional to 80,751,213.20, 121,126,819.80 and 59,068,420.40
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Solution
The fourth proportional to 80,751,213.20, 121,126,819.80 and 59,068,420.40 is: 88,602,630.60
Step by Step Solution
- Step 1: Write the proportion equation
80,751,213.20 : 121,126,819.80 = 59,068,420.40 : x - Step 2: Convert to fraction form
80,751,213.20/121,126,819.80 = 59,068,420.40/x - Step 3: Cross multiply
80,751,213.20x = 121,126,819.80 × 59,068,420.40 - Step 4: Simplify right side
80,751,213.20x = 7,154,769,913,661,444 - Step 5: Solve for x
x = 7,154,769,913,661,444/80,751,213.20 - Step 6: Final answer
x = 88,602,630.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.