Home / 129,298,320.20-194,171,429.10-68,832,144.20

Finding the Fourth Proportional to 129,298,320.20, 194,171,429.10 and 68,832,144.20

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Solution

The fourth proportional to 129,298,320.20, 194,171,429.10 and 68,832,144.20 is: 103,367,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,298,320.20 : 194,171,429.10 = 68,832,144.20 : x
  2. Step 2: Convert to fraction form
    129,298,320.20/194,171,429.10 = 68,832,144.20/x
  3. Step 3: Cross multiply
    129,298,320.20x = 194,171,429.10 × 68,832,144.20
  4. Step 4: Simplify right side
    129,298,320.20x = 13,365,235,807,331,276
  5. Step 5: Solve for x
    x = 13,365,235,807,331,276/129,298,320.20
  6. Step 6: Final answer
    x = 103,367,435.76

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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.