Home / 20,737,258.20-31,105,887.30-18,753,211.80

Finding the Fourth Proportional to 20,737,258.20, 31,105,887.30 and 18,753,211.80

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Solution

The fourth proportional to 20,737,258.20, 31,105,887.30 and 18,753,211.80 is: 28,129,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,258.20 : 31,105,887.30 = 18,753,211.80 : x
  2. Step 2: Convert to fraction form
    20,737,258.20/31,105,887.30 = 18,753,211.80/x
  3. Step 3: Cross multiply
    20,737,258.20x = 31,105,887.30 × 18,753,211.80
  4. Step 4: Simplify right side
    20,737,258.20x = 583,335,292,763,830.12
  5. Step 5: Solve for x
    x = 583,335,292,763,830.12/20,737,258.20
  6. Step 6: Final answer
    x = 28,129,817.70

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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.