Home / 148,591,921.80-205,057,496.04-82,512,217.92

Finding the Fourth Proportional to 148,591,921.80, 205,057,496.04 and 82,512,217.92

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Solution

The fourth proportional to 148,591,921.80, 205,057,496.04 and 82,512,217.92 is: 113,867,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,591,921.80 : 205,057,496.04 = 82,512,217.92 : x
  2. Step 2: Convert to fraction form
    148,591,921.80/205,057,496.04 = 82,512,217.92/x
  3. Step 3: Cross multiply
    148,591,921.80x = 205,057,496.04 × 82,512,217.92
  4. Step 4: Simplify right side
    148,591,921.80x = 16,919,748,799,382,016
  5. Step 5: Solve for x
    x = 16,919,748,799,382,016/148,591,921.80
  6. Step 6: Final answer
    x = 113,867,218.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.