Finding the Fourth Proportional to 458,291,847.66, 687,419,128.53 and 113,236,785.42
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Solution
The fourth proportional to 458,291,847.66, 687,419,128.53 and 113,236,785.42 is: 169,850,571.74
Step by Step Solution
- Step 1: Write the proportion equation
458,291,847.66 : 687,419,128.53 = 113,236,785.42 : x - Step 2: Convert to fraction form
458,291,847.66/687,419,128.53 = 113,236,785.42/x - Step 3: Cross multiply
458,291,847.66x = 687,419,128.53 × 113,236,785.42 - Step 4: Simplify right side
458,291,847.66x = 77,841,132,350,955,008 - Step 5: Solve for x
x = 77,841,132,350,955,008/458,291,847.66 - Step 6: Final answer
x = 169,850,571.74
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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.