Home / 80,472,640.20-120,626,291.70-39,469,014.60

Finding the Fourth Proportional to 80,472,640.20, 120,626,291.70 and 39,469,014.60

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Solution

The fourth proportional to 80,472,640.20, 120,626,291.70 and 39,469,014.60 is: 59,162,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,472,640.20 : 120,626,291.70 = 39,469,014.60 : x
  2. Step 2: Convert to fraction form
    80,472,640.20/120,626,291.70 = 39,469,014.60/x
  3. Step 3: Cross multiply
    80,472,640.20x = 120,626,291.70 × 39,469,014.60
  4. Step 4: Simplify right side
    80,472,640.20x = 4,761,000,868,251,159
  5. Step 5: Solve for x
    x = 4,761,000,868,251,159/80,472,640.20
  6. Step 6: Final answer
    x = 59,162,975.84

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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.