Finding the Fourth Proportional to 542,098,952.29, 748,040,239.35 and 319,067,332.84
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Solution
The fourth proportional to 542,098,952.29, 748,040,239.35 and 319,067,332.84 is: 440,279,773.68
Step by Step Solution
- Step 1: Write the proportion equation
542,098,952.29 : 748,040,239.35 = 319,067,332.84 : x - Step 2: Convert to fraction form
542,098,952.29/748,040,239.35 = 319,067,332.84/x - Step 3: Cross multiply
542,098,952.29x = 748,040,239.35 × 319,067,332.84 - Step 4: Simplify right side
542,098,952.29x = 238,675,204,026,399,712 - Step 5: Solve for x
x = 238,675,204,026,399,712/542,098,952.29 - Step 6: Final answer
x = 440,279,773.68
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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.