Home / 12,137,908.60-18,206,862.90-6,469,204.60

Finding the Fourth Proportional to 12,137,908.60, 18,206,862.90 and 6,469,204.60

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Solution

The fourth proportional to 12,137,908.60, 18,206,862.90 and 6,469,204.60 is: 9,703,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,908.60 : 18,206,862.90 = 6,469,204.60 : x
  2. Step 2: Convert to fraction form
    12,137,908.60/18,206,862.90 = 6,469,204.60/x
  3. Step 3: Cross multiply
    12,137,908.60x = 18,206,862.90 × 6,469,204.60
  4. Step 4: Simplify right side
    12,137,908.60x = 117,783,921,224,249.33
  5. Step 5: Solve for x
    x = 117,783,921,224,249.33/12,137,908.60
  6. Step 6: Final answer
    x = 9,703,806.90

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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.