Home / 129,298,455.20-194,171,631.60-68,832,279.20

Finding the Fourth Proportional to 129,298,455.20, 194,171,631.60 and 68,832,279.20

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Solution

The fourth proportional to 129,298,455.20, 194,171,631.60 and 68,832,279.20 is: 103,367,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,298,455.20 : 194,171,631.60 = 68,832,279.20 : x
  2. Step 2: Convert to fraction form
    129,298,455.20/194,171,631.60 = 68,832,279.20/x
  3. Step 3: Cross multiply
    129,298,455.20x = 194,171,631.60 × 68,832,279.20
  4. Step 4: Simplify right side
    129,298,455.20x = 13,365,275,959,010,742
  5. Step 5: Solve for x
    x = 13,365,275,959,010,742/129,298,455.20
  6. Step 6: Final answer
    x = 103,367,638.37

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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.