Home / 15,202,424.97-20,981,433.72-9,321,019.05

Finding the Fourth Proportional to 15,202,424.97, 20,981,433.72 and 9,321,019.05

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Solution

The fourth proportional to 15,202,424.97, 20,981,433.72 and 9,321,019.05 is: 12,864,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202,424.97 : 20,981,433.72 = 9,321,019.05 : x
  2. Step 2: Convert to fraction form
    15,202,424.97/20,981,433.72 = 9,321,019.05/x
  3. Step 3: Cross multiply
    15,202,424.97x = 20,981,433.72 × 9,321,019.05
  4. Step 4: Simplify right side
    15,202,424.97x = 195,568,343,400,432.38
  5. Step 5: Solve for x
    x = 195,568,343,400,432.38/15,202,424.97
  6. Step 6: Final answer
    x = 12,864,286.05

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1.5x scale

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.