Home / 12,125,753.85-18,188,630.78-8,299,378.65

Finding the Fourth Proportional to 12,125,753.85, 18,188,630.78 and 8,299,378.65

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Solution

The fourth proportional to 12,125,753.85, 18,188,630.78 and 8,299,378.65 is: 12,449,067.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125,753.85 : 18,188,630.78 = 8,299,378.65 : x
  2. Step 2: Convert to fraction form
    12,125,753.85/18,188,630.78 = 8,299,378.65/x
  3. Step 3: Cross multiply
    12,125,753.85x = 18,188,630.78 × 8,299,378.65
  4. Step 4: Simplify right side
    12,125,753.85x = 150,954,333,926,767.94
  5. Step 5: Solve for x
    x = 150,954,333,926,767.94/12,125,753.85
  6. Step 6: Final answer
    x = 12,449,067.98

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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.