Home / 391,172,690.80-539,700,591.90-234,482,626.36

Finding the Fourth Proportional to 391,172,690.80, 539,700,591.90 and 234,482,626.36

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Solution

The fourth proportional to 391,172,690.80, 539,700,591.90 and 234,482,626.36 is: 323,515,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,172,690.80 : 539,700,591.90 = 234,482,626.36 : x
  2. Step 2: Convert to fraction form
    391,172,690.80/539,700,591.90 = 234,482,626.36/x
  3. Step 3: Cross multiply
    391,172,690.80x = 539,700,591.90 × 234,482,626.36
  4. Step 4: Simplify right side
    391,172,690.80x = 126,550,412,236,758,544
  5. Step 5: Solve for x
    x = 126,550,412,236,758,544/391,172,690.80
  6. Step 6: Final answer
    x = 323,515,458.04

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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.