Home / 20,278,414.13-30,421,434.77-8,148,839.19

Finding the Fourth Proportional to 20,278,414.13, 30,421,434.77 and 8,148,839.19

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Solution

The fourth proportional to 20,278,414.13, 30,421,434.77 and 8,148,839.19 is: 12,224,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,414.13 : 30,421,434.77 = 8,148,839.19 : x
  2. Step 2: Convert to fraction form
    20,278,414.13/30,421,434.77 = 8,148,839.19/x
  3. Step 3: Cross multiply
    20,278,414.13x = 30,421,434.77 × 8,148,839.19
  4. Step 4: Simplify right side
    20,278,414.13x = 247,899,379,745,538.22
  5. Step 5: Solve for x
    x = 247,899,379,745,538.22/20,278,414.13
  6. Step 6: Final answer
    x = 12,224,791.26

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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.