Home / 137,987,675.20-206,981,512.80-129,484,619.20

Finding the Fourth Proportional to 137,987,675.20, 206,981,512.80 and 129,484,619.20

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Solution

The fourth proportional to 137,987,675.20, 206,981,512.80 and 129,484,619.20 is: 194,226,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,987,675.20 : 206,981,512.80 = 129,484,619.20 : x
  2. Step 2: Convert to fraction form
    137,987,675.20/206,981,512.80 = 129,484,619.20/x
  3. Step 3: Cross multiply
    137,987,675.20x = 206,981,512.80 × 129,484,619.20
  4. Step 4: Simplify right side
    137,987,675.20x = 26,800,922,366,347,928
  5. Step 5: Solve for x
    x = 26,800,922,366,347,928/137,987,675.20
  6. Step 6: Final answer
    x = 194,226,928.80

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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.