Home / 83,239,224.40-124,858,836.60-81,538,613.20

Finding the Fourth Proportional to 83,239,224.40, 124,858,836.60 and 81,538,613.20

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Solution

The fourth proportional to 83,239,224.40, 124,858,836.60 and 81,538,613.20 is: 122,307,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,239,224.40 : 124,858,836.60 = 81,538,613.20 : x
  2. Step 2: Convert to fraction form
    83,239,224.40/124,858,836.60 = 81,538,613.20/x
  3. Step 3: Cross multiply
    83,239,224.40x = 124,858,836.60 × 81,538,613.20
  4. Step 4: Simplify right side
    83,239,224.40x = 10,180,816,382,129,404
  5. Step 5: Solve for x
    x = 10,180,816,382,129,404/83,239,224.40
  6. Step 6: Final answer
    x = 122,307,919.80

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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.