Home / 39,988,930.40-55,184,710.50-21,654,215.90

Finding the Fourth Proportional to 39,988,930.40, 55,184,710.50 and 21,654,215.90

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Solution

The fourth proportional to 39,988,930.40, 55,184,710.50 and 21,654,215.90 is: 29,882,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988,930.40 : 55,184,710.50 = 21,654,215.90 : x
  2. Step 2: Convert to fraction form
    39,988,930.40/55,184,710.50 = 21,654,215.90/x
  3. Step 3: Cross multiply
    39,988,930.40x = 55,184,710.50 × 21,654,215.90
  4. Step 4: Simplify right side
    39,988,930.40x = 1,194,981,635,408,035.25
  5. Step 5: Solve for x
    x = 1,194,981,635,408,035.25/39,988,930.40
  6. Step 6: Final answer
    x = 29,882,810.66

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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.