Home / 11,520,691.20-17,281,036.80-7,279,660.80

Finding the Fourth Proportional to 11,520,691.20, 17,281,036.80 and 7,279,660.80

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Solution

The fourth proportional to 11,520,691.20, 17,281,036.80 and 7,279,660.80 is: 10,919,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520,691.20 : 17,281,036.80 = 7,279,660.80 : x
  2. Step 2: Convert to fraction form
    11,520,691.20/17,281,036.80 = 7,279,660.80/x
  3. Step 3: Cross multiply
    11,520,691.20x = 17,281,036.80 × 7,279,660.80
  4. Step 4: Simplify right side
    11,520,691.20x = 125,800,086,176,317.44
  5. Step 5: Solve for x
    x = 125,800,086,176,317.44/11,520,691.20
  6. Step 6: Final answer
    x = 10,919,491.20

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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.