Home / 20,957,076.70-31,435,615.05-8,840,221.90

Finding the Fourth Proportional to 20,957,076.70, 31,435,615.05 and 8,840,221.90

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Solution

The fourth proportional to 20,957,076.70, 31,435,615.05 and 8,840,221.90 is: 13,260,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957,076.70 : 31,435,615.05 = 8,840,221.90 : x
  2. Step 2: Convert to fraction form
    20,957,076.70/31,435,615.05 = 8,840,221.90/x
  3. Step 3: Cross multiply
    20,957,076.70x = 31,435,615.05 × 8,840,221.90
  4. Step 4: Simplify right side
    20,957,076.70x = 277,897,812,604,979.62
  5. Step 5: Solve for x
    x = 277,897,812,604,979.62/20,957,076.70
  6. Step 6: Final answer
    x = 13,260,332.85

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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.