Finding the Fourth Proportional to 159,542,107.20, 239,279,983.20 and 68,668,660.80
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Solution
The fourth proportional to 159,542,107.20, 239,279,983.20 and 68,668,660.80 is: 102,988,711.20
Step by Step Solution
- Step 1: Write the proportion equation
159,542,107.20 : 239,279,983.20 = 68,668,660.80 : x - Step 2: Convert to fraction form
159,542,107.20/239,279,983.20 = 68,668,660.80/x - Step 3: Cross multiply
159,542,107.20x = 239,279,983.20 × 68,668,660.80 - Step 4: Simplify right side
159,542,107.20x = 16,431,036,002,590,498 - Step 5: Solve for x
x = 16,431,036,002,590,498/159,542,107.20 - Step 6: Final answer
x = 102,988,711.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.