Home / 78,392,175.71-108,187,262.24-47,031,404.90

Finding the Fourth Proportional to 78,392,175.71, 108,187,262.24 and 47,031,404.90

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Solution

The fourth proportional to 78,392,175.71, 108,187,262.24 and 47,031,404.90 is: 64,906,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,175.71 : 108,187,262.24 = 47,031,404.90 : x
  2. Step 2: Convert to fraction form
    78,392,175.71/108,187,262.24 = 47,031,404.90/x
  3. Step 3: Cross multiply
    78,392,175.71x = 108,187,262.24 × 47,031,404.90
  4. Step 4: Simplify right side
    78,392,175.71x = 5,088,198,934,655,828
  5. Step 5: Solve for x
    x = 5,088,198,934,655,828/78,392,175.71
  6. Step 6: Final answer
    x = 64,906,974.31

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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.