Home / 20,387,373.83-30,565,786.05-12,298,463.94

Finding the Fourth Proportional to 20,387,373.83, 30,565,786.05 and 12,298,463.94

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Solution

The fourth proportional to 20,387,373.83, 30,565,786.05 and 12,298,463.94 is: 18,438,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,373.83 : 30,565,786.05 = 12,298,463.94 : x
  2. Step 2: Convert to fraction form
    20,387,373.83/30,565,786.05 = 12,298,463.94/x
  3. Step 3: Cross multiply
    20,387,373.83x = 30,565,786.05 × 12,298,463.94
  4. Step 4: Simplify right side
    20,387,373.83x = 375,912,217,533,680
  5. Step 5: Solve for x
    x = 375,912,217,533,680/20,387,373.83
  6. Step 6: Final answer
    x = 18,438,481.62

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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.