Finding the Fourth Proportional to 557,656,831.20, 836,485,246.80 and 497,391,421.80
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Solution
The fourth proportional to 557,656,831.20, 836,485,246.80 and 497,391,421.80 is: 746,087,132.70
Step by Step Solution
- Step 1: Write the proportion equation
557,656,831.20 : 836,485,246.80 = 497,391,421.80 : x - Step 2: Convert to fraction form
557,656,831.20/836,485,246.80 = 497,391,421.80/x - Step 3: Cross multiply
557,656,831.20x = 836,485,246.80 × 497,391,421.80 - Step 4: Simplify right side
557,656,831.20x = 416,060,586,220,575,872 - Step 5: Solve for x
x = 416,060,586,220,575,872/557,656,831.20 - Step 6: Final answer
x = 746,087,132.70
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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.