Home / 12,469,672.20-18,704,508.30-11,776,830.60

Finding the Fourth Proportional to 12,469,672.20, 18,704,508.30 and 11,776,830.60

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Solution

The fourth proportional to 12,469,672.20, 18,704,508.30 and 11,776,830.60 is: 17,665,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,672.20 : 18,704,508.30 = 11,776,830.60 : x
  2. Step 2: Convert to fraction form
    12,469,672.20/18,704,508.30 = 11,776,830.60/x
  3. Step 3: Cross multiply
    12,469,672.20x = 18,704,508.30 × 11,776,830.60
  4. Step 4: Simplify right side
    12,469,672.20x = 220,279,825,705,393.97
  5. Step 5: Solve for x
    x = 220,279,825,705,393.97/12,469,672.20
  6. Step 6: Final answer
    x = 17,665,245.90

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1.5x scale

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.