Home / 13,707,708.10-18,915,988.22-8,204,115.31

Finding the Fourth Proportional to 13,707,708.10, 18,915,988.22 and 8,204,115.31

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Solution

The fourth proportional to 13,707,708.10, 18,915,988.22 and 8,204,115.31 is: 11,321,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707,708.10 : 18,915,988.22 = 8,204,115.31 : x
  2. Step 2: Convert to fraction form
    13,707,708.10/18,915,988.22 = 8,204,115.31/x
  3. Step 3: Cross multiply
    13,707,708.10x = 18,915,988.22 × 8,204,115.31
  4. Step 4: Simplify right side
    13,707,708.10x = 155,188,948,501,936.53
  5. Step 5: Solve for x
    x = 155,188,948,501,936.53/13,707,708.10
  6. Step 6: Final answer
    x = 11,321,290.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.