Home / 108,515,198.20-162,770,172.90-65,351,691.40

Finding the Fourth Proportional to 108,515,198.20, 162,770,172.90 and 65,351,691.40

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Solution

The fourth proportional to 108,515,198.20, 162,770,172.90 and 65,351,691.40 is: 98,025,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,515,198.20 : 162,770,172.90 = 65,351,691.40 : x
  2. Step 2: Convert to fraction form
    108,515,198.20/162,770,172.90 = 65,351,691.40/x
  3. Step 3: Cross multiply
    108,515,198.20x = 162,770,172.90 × 65,351,691.40
  4. Step 4: Simplify right side
    108,515,198.20x = 10,637,306,108,485,444
  5. Step 5: Solve for x
    x = 10,637,306,108,485,444/108,515,198.20
  6. Step 6: Final answer
    x = 98,025,956.59

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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.