Home / 206,086,480.80-309,129,721.20-125,464,912.80

Finding the Fourth Proportional to 206,086,480.80, 309,129,721.20 and 125,464,912.80

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Solution

The fourth proportional to 206,086,480.80, 309,129,721.20 and 125,464,912.80 is: 188,197,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,086,480.80 : 309,129,721.20 = 125,464,912.80 : x
  2. Step 2: Convert to fraction form
    206,086,480.80/309,129,721.20 = 125,464,912.80/x
  3. Step 3: Cross multiply
    206,086,480.80x = 309,129,721.20 × 125,464,912.80
  4. Step 4: Simplify right side
    206,086,480.80x = 38,784,933,514,246,312
  5. Step 5: Solve for x
    x = 38,784,933,514,246,312/206,086,480.80
  6. Step 6: Final answer
    x = 188,197,369.20

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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.