Home / 129,490,691.70-194,236,037.55-123,518,723.70

Finding the Fourth Proportional to 129,490,691.70, 194,236,037.55 and 123,518,723.70

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Solution

The fourth proportional to 129,490,691.70, 194,236,037.55 and 123,518,723.70 is: 185,278,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,490,691.70 : 194,236,037.55 = 123,518,723.70 : x
  2. Step 2: Convert to fraction form
    129,490,691.70/194,236,037.55 = 123,518,723.70/x
  3. Step 3: Cross multiply
    129,490,691.70x = 194,236,037.55 × 123,518,723.70
  4. Step 4: Simplify right side
    129,490,691.70x = 23,991,787,454,721,276
  5. Step 5: Solve for x
    x = 23,991,787,454,721,276/129,490,691.70
  6. Step 6: Final answer
    x = 185,278,085.55

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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.