Finding the Fourth Proportional to 478,728,475.62, 718,092,910.26 and 115,222,831.62
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Solution
The fourth proportional to 478,728,475.62, 718,092,910.26 and 115,222,831.62 is: 172,834,294.80
Step by Step Solution
- Step 1: Write the proportion equation
478,728,475.62 : 718,092,910.26 = 115,222,831.62 : x - Step 2: Convert to fraction form
478,728,475.62/718,092,910.26 = 115,222,831.62/x - Step 3: Cross multiply
478,728,475.62x = 718,092,910.26 × 115,222,831.62 - Step 4: Simplify right side
478,728,475.62x = 82,740,698,486,403,760 - Step 5: Solve for x
x = 82,740,698,486,403,760/478,728,475.62 - Step 6: Final answer
x = 172,834,294.80
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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.