Home / 129,247,456.20-193,965,662.70-90,983,704.20

Finding the Fourth Proportional to 129,247,456.20, 193,965,662.70 and 90,983,704.20

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Solution

The fourth proportional to 129,247,456.20, 193,965,662.70 and 90,983,704.20 is: 136,542,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247,456.20 : 193,965,662.70 = 90,983,704.20 : x
  2. Step 2: Convert to fraction form
    129,247,456.20/193,965,662.70 = 90,983,704.20/x
  3. Step 3: Cross multiply
    129,247,456.20x = 193,965,662.70 × 90,983,704.20
  4. Step 4: Simplify right side
    129,247,456.20x = 17,647,714,480,053,772
  5. Step 5: Solve for x
    x = 17,647,714,480,053,772/129,247,456.20
  6. Step 6: Final answer
    x = 136,542,064.34

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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.