Home / 512,789,701.32-768,377,942.64-396,489,152.88

Finding the Fourth Proportional to 512,789,701.32, 768,377,942.64 and 396,489,152.88

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Solution

The fourth proportional to 512,789,701.32, 768,377,942.64 and 396,489,152.88 is: 594,110,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,789,701.32 : 768,377,942.64 = 396,489,152.88 : x
  2. Step 2: Convert to fraction form
    512,789,701.32/768,377,942.64 = 396,489,152.88/x
  3. Step 3: Cross multiply
    512,789,701.32x = 768,377,942.64 × 396,489,152.88
  4. Step 4: Simplify right side
    512,789,701.32x = 304,653,519,569,010,816
  5. Step 5: Solve for x
    x = 304,653,519,569,010,816/512,789,701.32
  6. Step 6: Final answer
    x = 594,110,058.73

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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.