Finding the Fourth Proportional to 115,639,456.61, 159,618,184.07 and 74,386,348.99
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Solution
The fourth proportional to 115,639,456.61, 159,618,184.07 and 74,386,348.99 is: 102,676,147.85
Step by Step Solution
- Step 1: Write the proportion equation
115,639,456.61 : 159,618,184.07 = 74,386,348.99 : x - Step 2: Convert to fraction form
115,639,456.61/159,618,184.07 = 74,386,348.99/x - Step 3: Cross multiply
115,639,456.61x = 159,618,184.07 × 74,386,348.99 - Step 4: Simplify right side
115,639,456.61x = 11,873,413,944,610,100 - Step 5: Solve for x
x = 11,873,413,944,610,100/115,639,456.61 - Step 6: Final answer
x = 102,676,147.85
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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.