Finding the Fourth Proportional to 102,981,560.29, 141,979,322.49 and 74,314,350.68
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Solution
The fourth proportional to 102,981,560.29, 141,979,322.49 and 74,314,350.68 is: 102,456,217.70
Step by Step Solution
- Step 1: Write the proportion equation
102,981,560.29 : 141,979,322.49 = 74,314,350.68 : x - Step 2: Convert to fraction form
102,981,560.29/141,979,322.49 = 74,314,350.68/x - Step 3: Cross multiply
102,981,560.29x = 141,979,322.49 × 74,314,350.68 - Step 4: Simplify right side
102,981,560.29x = 10,551,101,159,842,096 - Step 5: Solve for x
x = 10,551,101,159,842,096/102,981,560.29 - Step 6: Final answer
x = 102,456,217.70
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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.