Home / 639,741,398.28-959,647,993.47-179,643,694.92

Finding the Fourth Proportional to 639,741,398.28, 959,647,993.47 and 179,643,694.92

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Solution

The fourth proportional to 639,741,398.28, 959,647,993.47 and 179,643,694.92 is: 269,475,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,741,398.28 : 959,647,993.47 = 179,643,694.92 : x
  2. Step 2: Convert to fraction form
    639,741,398.28/959,647,993.47 = 179,643,694.92/x
  3. Step 3: Cross multiply
    639,741,398.28x = 959,647,993.47 × 179,643,694.92
  4. Step 4: Simplify right side
    639,741,398.28x = 172,394,711,369,514,816
  5. Step 5: Solve for x
    x = 172,394,711,369,514,816/639,741,398.28
  6. Step 6: Final answer
    x = 269,475,622.23

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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.