Home / 137,981,680.80-206,972,521.20-69,957,232.80

Finding the Fourth Proportional to 137,981,680.80, 206,972,521.20 and 69,957,232.80

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Solution

The fourth proportional to 137,981,680.80, 206,972,521.20 and 69,957,232.80 is: 104,935,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,981,680.80 : 206,972,521.20 = 69,957,232.80 : x
  2. Step 2: Convert to fraction form
    137,981,680.80/206,972,521.20 = 69,957,232.80/x
  3. Step 3: Cross multiply
    137,981,680.80x = 206,972,521.20 × 69,957,232.80
  4. Step 4: Simplify right side
    137,981,680.80x = 14,479,224,848,791,334
  5. Step 5: Solve for x
    x = 14,479,224,848,791,334/137,981,680.80
  6. Step 6: Final answer
    x = 104,935,849.20

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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.