Home / 129,024,006.80-193,536,010.20-109,540,461.20

Finding the Fourth Proportional to 129,024,006.80, 193,536,010.20 and 109,540,461.20

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Solution

The fourth proportional to 129,024,006.80, 193,536,010.20 and 109,540,461.20 is: 164,310,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,006.80 : 193,536,010.20 = 109,540,461.20 : x
  2. Step 2: Convert to fraction form
    129,024,006.80/193,536,010.20 = 109,540,461.20/x
  3. Step 3: Cross multiply
    129,024,006.80x = 193,536,010.20 × 109,540,461.20
  4. Step 4: Simplify right side
    129,024,006.80x = 21,200,023,816,115,904
  5. Step 5: Solve for x
    x = 21,200,023,816,115,904/129,024,006.80
  6. Step 6: Final answer
    x = 164,310,691.80

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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.