Home / 220,729,939.40-331,083,902.80-82,545,387.34

Finding the Fourth Proportional to 220,729,939.40, 331,083,902.80 and 82,545,387.34

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Solution

The fourth proportional to 220,729,939.40, 331,083,902.80 and 82,545,387.34 is: 123,813,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,729,939.40 : 331,083,902.80 = 82,545,387.34 : x
  2. Step 2: Convert to fraction form
    220,729,939.40/331,083,902.80 = 82,545,387.34/x
  3. Step 3: Cross multiply
    220,729,939.40x = 331,083,902.80 × 82,545,387.34
  4. Step 4: Simplify right side
    220,729,939.40x = 27,329,448,998,664,912
  5. Step 5: Solve for x
    x = 27,329,448,998,664,912/220,729,939.40
  6. Step 6: Final answer
    x = 123,813,965.03

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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.