Home / 284,479,854.40-426,719,781.60-279,944,891.20

Finding the Fourth Proportional to 284,479,854.40, 426,719,781.60 and 279,944,891.20

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Solution

The fourth proportional to 284,479,854.40, 426,719,781.60 and 279,944,891.20 is: 419,917,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,479,854.40 : 426,719,781.60 = 279,944,891.20 : x
  2. Step 2: Convert to fraction form
    284,479,854.40/426,719,781.60 = 279,944,891.20/x
  3. Step 3: Cross multiply
    284,479,854.40x = 426,719,781.60 × 279,944,891.20
  4. Step 4: Simplify right side
    284,479,854.40x = 119,458,022,832,899,760
  5. Step 5: Solve for x
    x = 119,458,022,832,899,760/284,479,854.40
  6. Step 6: Final answer
    x = 419,917,336.80

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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.