Home / 81,480,996.72-122,275,340.42-38,362,531.14

Finding the Fourth Proportional to 81,480,996.72, 122,275,340.42 and 38,362,531.14

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Solution

The fourth proportional to 81,480,996.72, 122,275,340.42 and 38,362,531.14 is: 57,569,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,480,996.72 : 122,275,340.42 = 38,362,531.14 : x
  2. Step 2: Convert to fraction form
    81,480,996.72/122,275,340.42 = 38,362,531.14/x
  3. Step 3: Cross multiply
    81,480,996.72x = 122,275,340.42 × 38,362,531.14
  4. Step 4: Simplify right side
    81,480,996.72x = 4,690,791,554,324,538
  5. Step 5: Solve for x
    x = 4,690,791,554,324,538/81,480,996.72
  6. Step 6: Final answer
    x = 57,569,147.94

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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.