Home / 8,279,136.40-12,418,704.60-3,492,230.80

Finding the Fourth Proportional to 8,279,136.40, 12,418,704.60 and 3,492,230.80

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Solution

The fourth proportional to 8,279,136.40, 12,418,704.60 and 3,492,230.80 is: 5,238,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,136.40 : 12,418,704.60 = 3,492,230.80 : x
  2. Step 2: Convert to fraction form
    8,279,136.40/12,418,704.60 = 3,492,230.80/x
  3. Step 3: Cross multiply
    8,279,136.40x = 12,418,704.60 × 3,492,230.80
  4. Step 4: Simplify right side
    8,279,136.40x = 43,368,982,700,221.68
  5. Step 5: Solve for x
    x = 43,368,982,700,221.68/8,279,136.40
  6. Step 6: Final answer
    x = 5,238,346.20

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Similar ratio
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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.