Home / 398,987,929,913.30-598,558,894,691.28-130,304,677,726.62

Finding the Fourth Proportional to 398,987,929,913.30, 598,558,894,691.28 and 130,304,677,726.62

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Solution

The fourth proportional to 398,987,929,913.30, 598,558,894,691.28 and 130,304,677,726.62 is: 195,482,163,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,987,929,913.30 : 598,558,894,691.28 = 130,304,677,726.62 : x
  2. Step 2: Convert to fraction form
    398,987,929,913.30/598,558,894,691.28 = 130,304,677,726.62/x
  3. Step 3: Cross multiply
    398,987,929,913.30x = 598,558,894,691.28 × 130,304,677,726.62
  4. Step 4: Simplify right side
    398,987,929,913.30x = 77,995,023,873,149,123,952,640
  5. Step 5: Solve for x
    x = 77,995,023,873,149,123,952,640/398,987,929,913.30
  6. Step 6: Final answer
    x = 195,482,163,809.06

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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.