Finding the Fourth Proportional to 115,452,908.99, 159,264,609.77 and 71,385,821.27
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Solution
The fourth proportional to 115,452,908.99, 159,264,609.77 and 71,385,821.27 is: 98,475,084.49
Step by Step Solution
- Step 1: Write the proportion equation
115,452,908.99 : 159,264,609.77 = 71,385,821.27 : x - Step 2: Convert to fraction form
115,452,908.99/159,264,609.77 = 71,385,821.27/x - Step 3: Cross multiply
115,452,908.99x = 159,264,609.77 × 71,385,821.27 - Step 4: Simplify right side
115,452,908.99x = 11,369,234,966,524,262 - Step 5: Solve for x
x = 11,369,234,966,524,262/115,452,908.99 - Step 6: Final answer
x = 98,475,084.49
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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.