Finding the Fourth Proportional to 763,957,489.80, 1,145,936,234.70 and 763,957,489.80
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Solution
The fourth proportional to 763,957,489.80, 1,145,936,234.70 and 763,957,489.80 is: 1,145,936,234.70
Step by Step Solution
- Step 1: Write the proportion equation
763,957,489.80 : 1,145,936,234.70 = 763,957,489.80 : x - Step 2: Convert to fraction form
763,957,489.80/1,145,936,234.70 = 763,957,489.80/x - Step 3: Cross multiply
763,957,489.80x = 1,145,936,234.70 × 763,957,489.80 - Step 4: Simplify right side
763,957,489.80x = 875,446,569,332,275,584 - Step 5: Solve for x
x = 875,446,569,332,275,584/763,957,489.80 - Step 6: Final answer
x = 1,145,936,234.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.