Home / 83,414,201.80-125,121,302.70-80,012,979.40

Finding the Fourth Proportional to 83,414,201.80, 125,121,302.70 and 80,012,979.40

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Solution

The fourth proportional to 83,414,201.80, 125,121,302.70 and 80,012,979.40 is: 120,019,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414,201.80 : 125,121,302.70 = 80,012,979.40 : x
  2. Step 2: Convert to fraction form
    83,414,201.80/125,121,302.70 = 80,012,979.40/x
  3. Step 3: Cross multiply
    83,414,201.80x = 125,121,302.70 × 80,012,979.40
  4. Step 4: Simplify right side
    83,414,201.80x = 10,011,328,215,436,266
  5. Step 5: Solve for x
    x = 10,011,328,215,436,266/83,414,201.80
  6. Step 6: Final answer
    x = 120,019,469.10

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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.