Home / 206,428,506.90-309,642,760.35-124,799,169.30

Finding the Fourth Proportional to 206,428,506.90, 309,642,760.35 and 124,799,169.30

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Solution

The fourth proportional to 206,428,506.90, 309,642,760.35 and 124,799,169.30 is: 187,198,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,428,506.90 : 309,642,760.35 = 124,799,169.30 : x
  2. Step 2: Convert to fraction form
    206,428,506.90/309,642,760.35 = 124,799,169.30/x
  3. Step 3: Cross multiply
    206,428,506.90x = 309,642,760.35 × 124,799,169.30
  4. Step 4: Simplify right side
    206,428,506.90x = 38,643,159,271,438,976
  5. Step 5: Solve for x
    x = 38,643,159,271,438,976/206,428,506.90
  6. Step 6: Final answer
    x = 187,198,753.95

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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.