Home / 15,147,974.52-20,904,281.55-8,272,456.38

Finding the Fourth Proportional to 15,147,974.52, 20,904,281.55 and 8,272,456.38

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Solution

The fourth proportional to 15,147,974.52, 20,904,281.55 and 8,272,456.38 is: 11,416,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147,974.52 : 20,904,281.55 = 8,272,456.38 : x
  2. Step 2: Convert to fraction form
    15,147,974.52/20,904,281.55 = 8,272,456.38/x
  3. Step 3: Cross multiply
    15,147,974.52x = 20,904,281.55 × 8,272,456.38
  4. Step 4: Simplify right side
    15,147,974.52x = 172,929,757,277,613.78
  5. Step 5: Solve for x
    x = 172,929,757,277,613.78/15,147,974.52
  6. Step 6: Final answer
    x = 11,416,031.70

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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.