Home / 13,310,121.38-18,367,967.50-7,198,549.88

Finding the Fourth Proportional to 13,310,121.38, 18,367,967.50 and 7,198,549.88

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Solution

The fourth proportional to 13,310,121.38, 18,367,967.50 and 7,198,549.88 is: 9,933,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,121.38 : 18,367,967.50 = 7,198,549.88 : x
  2. Step 2: Convert to fraction form
    13,310,121.38/18,367,967.50 = 7,198,549.88/x
  3. Step 3: Cross multiply
    13,310,121.38x = 18,367,967.50 × 7,198,549.88
  4. Step 4: Simplify right side
    13,310,121.38x = 132,222,730,133,132.67
  5. Step 5: Solve for x
    x = 132,222,730,133,132.67/13,310,121.38
  6. Step 6: Final answer
    x = 9,933,998.83

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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.