Finding the Fourth Proportional to 66,087,070.46, 91,202,618.53 and 39,629,731.78
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Solution
The fourth proportional to 66,087,070.46, 91,202,618.53 and 39,629,731.78 is: 54,690,505.80
Step by Step Solution
- Step 1: Write the proportion equation
66,087,070.46 : 91,202,618.53 = 39,629,731.78 : x - Step 2: Convert to fraction form
66,087,070.46/91,202,618.53 = 39,629,731.78/x - Step 3: Cross multiply
66,087,070.46x = 91,202,618.53 × 39,629,731.78 - Step 4: Simplify right side
66,087,070.46x = 3,614,335,309,977,558 - Step 5: Solve for x
x = 3,614,335,309,977,558/66,087,070.46 - Step 6: Final answer
x = 54,690,505.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.