Home / 72,766,834.40-109,152,001.20-21,650,520.80

Finding the Fourth Proportional to 72,766,834.40, 109,152,001.20 and 21,650,520.80

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Solution

The fourth proportional to 72,766,834.40, 109,152,001.20 and 21,650,520.80 is: 32,476,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,766,834.40 : 109,152,001.20 = 21,650,520.80 : x
  2. Step 2: Convert to fraction form
    72,766,834.40/109,152,001.20 = 21,650,520.80/x
  3. Step 3: Cross multiply
    72,766,834.40x = 109,152,001.20 × 21,650,520.80
  4. Step 4: Simplify right side
    72,766,834.40x = 2,363,197,672,342,225
  5. Step 5: Solve for x
    x = 2,363,197,672,342,225/72,766,834.40
  6. Step 6: Final answer
    x = 32,476,301.76

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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.