Home / 143,659,961.55-198,250,743.42-77,580,454.43

Finding the Fourth Proportional to 143,659,961.55, 198,250,743.42 and 77,580,454.43

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Solution

The fourth proportional to 143,659,961.55, 198,250,743.42 and 77,580,454.43 is: 107,061,025.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659,961.55 : 198,250,743.42 = 77,580,454.43 : x
  2. Step 2: Convert to fraction form
    143,659,961.55/198,250,743.42 = 77,580,454.43/x
  3. Step 3: Cross multiply
    143,659,961.55x = 198,250,743.42 × 77,580,454.43
  4. Step 4: Simplify right side
    143,659,961.55x = 15,380,382,764,617,678
  5. Step 5: Solve for x
    x = 15,380,382,764,617,678/143,659,961.55
  6. Step 6: Final answer
    x = 107,061,025.21

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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.