Home / 81,481,010.72-122,275,361.42-38,362,545.14

Finding the Fourth Proportional to 81,481,010.72, 122,275,361.42 and 38,362,545.14

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Solution

The fourth proportional to 81,481,010.72, 122,275,361.42 and 38,362,545.14 is: 57,569,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,481,010.72 : 122,275,361.42 = 38,362,545.14 : x
  2. Step 2: Convert to fraction form
    81,481,010.72/122,275,361.42 = 38,362,545.14/x
  3. Step 3: Cross multiply
    81,481,010.72x = 122,275,361.42 × 38,362,545.14
  4. Step 4: Simplify right side
    81,481,010.72x = 4,690,794,071,984,565
  5. Step 5: Solve for x
    x = 4,690,794,071,984,565/81,481,010.72
  6. Step 6: Final answer
    x = 57,569,168.95

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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.