Finding the Fourth Proportional to 86,430,439.83, 129,597,819.12 and 35,348,330.91
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Solution
The fourth proportional to 86,430,439.83, 129,597,819.12 and 35,348,330.91 is: 53,002,930.50
Step by Step Solution
- Step 1: Write the proportion equation
86,430,439.83 : 129,597,819.12 = 35,348,330.91 : x - Step 2: Convert to fraction form
86,430,439.83/129,597,819.12 = 35,348,330.91/x - Step 3: Cross multiply
86,430,439.83x = 129,597,819.12 × 35,348,330.91 - Step 4: Simplify right side
86,430,439.83x = 4,581,066,595,468,085 - Step 5: Solve for x
x = 4,581,066,595,468,085/86,430,439.83 - Step 6: Final answer
x = 53,002,930.50
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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.