Home / 12,286,720.20-18,441,890.10-6,228,292.80

Finding the Fourth Proportional to 12,286,720.20, 18,441,890.10 and 6,228,292.80

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Solution

The fourth proportional to 12,286,720.20, 18,441,890.10 and 6,228,292.80 is: 9,348,425.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,720.20 : 18,441,890.10 = 6,228,292.80 : x
  2. Step 2: Convert to fraction form
    12,286,720.20/18,441,890.10 = 6,228,292.80/x
  3. Step 3: Cross multiply
    12,286,720.20x = 18,441,890.10 × 6,228,292.80
  4. Step 4: Simplify right side
    12,286,720.20x = 114,861,491,328,221.28
  5. Step 5: Solve for x
    x = 114,861,491,328,221.28/12,286,720.20
  6. Step 6: Final answer
    x = 9,348,425.74

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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.