Home / 39,305,167.92-54,240,404.85-21,423,542.31

Finding the Fourth Proportional to 39,305,167.92, 54,240,404.85 and 21,423,542.31

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Solution

The fourth proportional to 39,305,167.92, 54,240,404.85 and 21,423,542.31 is: 29,564,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305,167.92 : 54,240,404.85 = 21,423,542.31 : x
  2. Step 2: Convert to fraction form
    39,305,167.92/54,240,404.85 = 21,423,542.31/x
  3. Step 3: Cross multiply
    39,305,167.92x = 54,240,404.85 × 21,423,542.31
  4. Step 4: Simplify right side
    39,305,167.92x = 1,162,021,608,215,504.25
  5. Step 5: Solve for x
    x = 1,162,021,608,215,504.25/39,305,167.92
  6. Step 6: Final answer
    x = 29,564,092.20

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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.