Home / 39,988,930.08-55,184,710.07-21,654,215.58

Finding the Fourth Proportional to 39,988,930.08, 55,184,710.07 and 21,654,215.58

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Solution

The fourth proportional to 39,988,930.08, 55,184,710.07 and 21,654,215.58 is: 29,882,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988,930.08 : 55,184,710.07 = 21,654,215.58 : x
  2. Step 2: Convert to fraction form
    39,988,930.08/55,184,710.07 = 21,654,215.58/x
  3. Step 3: Cross multiply
    39,988,930.08x = 55,184,710.07 × 21,654,215.58
  4. Step 4: Simplify right side
    39,988,930.08x = 1,194,981,608,755,451.75
  5. Step 5: Solve for x
    x = 1,194,981,608,755,451.75/39,988,930.08
  6. Step 6: Final answer
    x = 29,882,810.22

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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.