Home / 40,025,863.12-55,235,738.33-21,691,148.62

Finding the Fourth Proportional to 40,025,863.12, 55,235,738.33 and 21,691,148.62

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Solution

The fourth proportional to 40,025,863.12, 55,235,738.33 and 21,691,148.62 is: 29,933,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,863.12 : 55,235,738.33 = 21,691,148.62 : x
  2. Step 2: Convert to fraction form
    40,025,863.12/55,235,738.33 = 21,691,148.62/x
  3. Step 3: Cross multiply
    40,025,863.12x = 55,235,738.33 × 21,691,148.62
  4. Step 4: Simplify right side
    40,025,863.12x = 1,198,126,609,143,005
  5. Step 5: Solve for x
    x = 1,198,126,609,143,005/40,025,863.12
  6. Step 6: Final answer
    x = 29,933,810.69

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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.