Home / 15,195,279.42-20,969,463.11-8,225,922.78

Finding the Fourth Proportional to 15,195,279.42, 20,969,463.11 and 8,225,922.78

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Solution

The fourth proportional to 15,195,279.42, 20,969,463.11 and 8,225,922.78 is: 11,351,761.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,279.42 : 20,969,463.11 = 8,225,922.78 : x
  2. Step 2: Convert to fraction form
    15,195,279.42/20,969,463.11 = 8,225,922.78/x
  3. Step 3: Cross multiply
    15,195,279.42x = 20,969,463.11 × 8,225,922.78
  4. Step 4: Simplify right side
    15,195,279.42x = 172,493,184,227,077.09
  5. Step 5: Solve for x
    x = 172,493,184,227,077.09/15,195,279.42
  6. Step 6: Final answer
    x = 11,351,761.26

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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.