Finding the Fourth Proportional to 115,639,451.14, 159,618,176.52 and 74,386,343.52
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Solution
The fourth proportional to 115,639,451.14, 159,618,176.52 and 74,386,343.52 is: 102,676,140.31
Step by Step Solution
- Step 1: Write the proportion equation
115,639,451.14 : 159,618,176.52 = 74,386,343.52 : x - Step 2: Convert to fraction form
115,639,451.14/159,618,176.52 = 74,386,343.52/x - Step 3: Cross multiply
115,639,451.14x = 159,618,176.52 × 74,386,343.52 - Step 4: Simplify right side
115,639,451.14x = 11,873,412,510,652,718 - Step 5: Solve for x
x = 11,873,412,510,652,718/115,639,451.14 - Step 6: Final answer
x = 102,676,140.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.