Home / 71,286,218.96-98,375,079.24-38,691,175.12

Finding the Fourth Proportional to 71,286,218.96, 98,375,079.24 and 38,691,175.12

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Solution

The fourth proportional to 71,286,218.96, 98,375,079.24 and 38,691,175.12 is: 53,393,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,286,218.96 : 98,375,079.24 = 38,691,175.12 : x
  2. Step 2: Convert to fraction form
    71,286,218.96/98,375,079.24 = 38,691,175.12/x
  3. Step 3: Cross multiply
    71,286,218.96x = 98,375,079.24 × 38,691,175.12
  4. Step 4: Simplify right side
    71,286,218.96x = 3,806,247,418,318,716
  5. Step 5: Solve for x
    x = 3,806,247,418,318,716/71,286,218.96
  6. Step 6: Final answer
    x = 53,393,874.35

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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.