Home / 83,414,206.80-125,121,310.20-80,012,984.40

Finding the Fourth Proportional to 83,414,206.80, 125,121,310.20 and 80,012,984.40

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Solution

The fourth proportional to 83,414,206.80, 125,121,310.20 and 80,012,984.40 is: 120,019,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414,206.80 : 125,121,310.20 = 80,012,984.40 : x
  2. Step 2: Convert to fraction form
    83,414,206.80/125,121,310.20 = 80,012,984.40/x
  3. Step 3: Cross multiply
    83,414,206.80x = 125,121,310.20 × 80,012,984.40
  4. Step 4: Simplify right side
    83,414,206.80x = 10,011,329,441,140,162
  5. Step 5: Solve for x
    x = 10,011,329,441,140,162/83,414,206.80
  6. Step 6: Final answer
    x = 120,019,476.60

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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.