Home / 123,442,144.26-185,204,378.49-82,105,982.58

Finding the Fourth Proportional to 123,442,144.26, 185,204,378.49 and 82,105,982.58

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Solution

The fourth proportional to 123,442,144.26, 185,204,378.49 and 82,105,982.58 is: 123,186,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,442,144.26 : 185,204,378.49 = 82,105,982.58 : x
  2. Step 2: Convert to fraction form
    123,442,144.26/185,204,378.49 = 82,105,982.58/x
  3. Step 3: Cross multiply
    123,442,144.26x = 185,204,378.49 × 82,105,982.58
  4. Step 4: Simplify right side
    123,442,144.26x = 15,206,387,474,039,668
  5. Step 5: Solve for x
    x = 15,206,387,474,039,668/123,442,144.26
  6. Step 6: Final answer
    x = 123,186,352.32

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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.