Home / 542,098,949.78-748,040,235.91-319,067,330.33

Finding the Fourth Proportional to 542,098,949.78, 748,040,235.91 and 319,067,330.33

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Solution

The fourth proportional to 542,098,949.78, 748,040,235.91 and 319,067,330.33 is: 440,279,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,098,949.78 : 748,040,235.91 = 319,067,330.33 : x
  2. Step 2: Convert to fraction form
    542,098,949.78/748,040,235.91 = 319,067,330.33/x
  3. Step 3: Cross multiply
    542,098,949.78x = 748,040,235.91 × 319,067,330.33
  4. Step 4: Simplify right side
    542,098,949.78x = 238,675,201,052,299,520
  5. Step 5: Solve for x
    x = 238,675,201,052,299,520/542,098,949.78
  6. Step 6: Final answer
    x = 440,279,770.23

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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.