Home / 122,914,855.28-169,617,452.87-67,162,189.62

Finding the Fourth Proportional to 122,914,855.28, 169,617,452.87 and 67,162,189.62

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Solution

The fourth proportional to 122,914,855.28, 169,617,452.87 and 67,162,189.62 is: 92,681,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,914,855.28 : 169,617,452.87 = 67,162,189.62 : x
  2. Step 2: Convert to fraction form
    122,914,855.28/169,617,452.87 = 67,162,189.62/x
  3. Step 3: Cross multiply
    122,914,855.28x = 169,617,452.87 × 67,162,189.62
  4. Step 4: Simplify right side
    122,914,855.28x = 11,391,879,532,684,260
  5. Step 5: Solve for x
    x = 11,391,879,532,684,260/122,914,855.28
  6. Step 6: Final answer
    x = 92,681,063.70

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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.