Home / 20,230,255.70-30,345,383.55-18,387,926.90

Finding the Fourth Proportional to 20,230,255.70, 30,345,383.55 and 18,387,926.90

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Solution

The fourth proportional to 20,230,255.70, 30,345,383.55 and 18,387,926.90 is: 27,581,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230,255.70 : 30,345,383.55 = 18,387,926.90 : x
  2. Step 2: Convert to fraction form
    20,230,255.70/30,345,383.55 = 18,387,926.90/x
  3. Step 3: Cross multiply
    20,230,255.70x = 30,345,383.55 × 18,387,926.90
  4. Step 4: Simplify right side
    20,230,255.70x = 557,988,694,469,862.44
  5. Step 5: Solve for x
    x = 557,988,694,469,862.44/20,230,255.70
  6. Step 6: Final answer
    x = 27,581,890.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.