Home / 81,481,009.72-122,275,359.92-38,362,544.14

Finding the Fourth Proportional to 81,481,009.72, 122,275,359.92 and 38,362,544.14

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Solution

The fourth proportional to 81,481,009.72, 122,275,359.92 and 38,362,544.14 is: 57,569,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,481,009.72 : 122,275,359.92 = 38,362,544.14 : x
  2. Step 2: Convert to fraction form
    81,481,009.72/122,275,359.92 = 38,362,544.14/x
  3. Step 3: Cross multiply
    81,481,009.72x = 122,275,359.92 × 38,362,544.14
  4. Step 4: Simplify right side
    81,481,009.72x = 4,690,793,892,165,387
  5. Step 5: Solve for x
    x = 4,690,793,892,165,387/81,481,009.72
  6. Step 6: Final answer
    x = 57,569,167.45

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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.