Home / 391,022,096.10-539,616,019.55-214,826,375.49

Finding the Fourth Proportional to 391,022,096.10, 539,616,019.55 and 214,826,375.49

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Solution

The fourth proportional to 391,022,096.10, 539,616,019.55 and 214,826,375.49 is: 296,463,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,022,096.10 : 539,616,019.55 = 214,826,375.49 : x
  2. Step 2: Convert to fraction form
    391,022,096.10/539,616,019.55 = 214,826,375.49/x
  3. Step 3: Cross multiply
    391,022,096.10x = 539,616,019.55 × 214,826,375.49
  4. Step 4: Simplify right side
    391,022,096.10x = 115,923,753,635,193,344
  5. Step 5: Solve for x
    x = 115,923,753,635,193,344/391,022,096.10
  6. Step 6: Final answer
    x = 296,463,434.65

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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.