Home / 70,969,892.20-106,255,772.70-68,979,236.20

Finding the Fourth Proportional to 70,969,892.20, 106,255,772.70 and 68,979,236.20

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Solution

The fourth proportional to 70,969,892.20, 106,255,772.70 and 68,979,236.20 is: 103,275,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969,892.20 : 106,255,772.70 = 68,979,236.20 : x
  2. Step 2: Convert to fraction form
    70,969,892.20/106,255,772.70 = 68,979,236.20/x
  3. Step 3: Cross multiply
    70,969,892.20x = 106,255,772.70 × 68,979,236.20
  4. Step 4: Simplify right side
    70,969,892.20x = 7,329,442,042,686,812
  5. Step 5: Solve for x
    x = 7,329,442,042,686,812/70,969,892.20
  6. Step 6: Final answer
    x = 103,275,372.35

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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.