Home / 140,340,385.20-193,659,899.89-81,598,882.89

Finding the Fourth Proportional to 140,340,385.20, 193,659,899.89 and 81,598,882.89

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Solution

The fourth proportional to 140,340,385.20, 193,659,899.89 and 81,598,882.89 is: 112,600,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,340,385.20 : 193,659,899.89 = 81,598,882.89 : x
  2. Step 2: Convert to fraction form
    140,340,385.20/193,659,899.89 = 81,598,882.89/x
  3. Step 3: Cross multiply
    140,340,385.20x = 193,659,899.89 × 81,598,882.89
  4. Step 4: Simplify right side
    140,340,385.20x = 15,802,431,491,613,232
  5. Step 5: Solve for x
    x = 15,802,431,491,613,232/140,340,385.20
  6. Step 6: Final answer
    x = 112,600,741.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.