Home / 144,074,760.20-198,823,230.60-77,995,256.90

Finding the Fourth Proportional to 144,074,760.20, 198,823,230.60 and 77,995,256.90

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Solution

The fourth proportional to 144,074,760.20, 198,823,230.60 and 77,995,256.90 is: 107,633,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,074,760.20 : 198,823,230.60 = 77,995,256.90 : x
  2. Step 2: Convert to fraction form
    144,074,760.20/198,823,230.60 = 77,995,256.90/x
  3. Step 3: Cross multiply
    144,074,760.20x = 198,823,230.60 × 77,995,256.90
  4. Step 4: Simplify right side
    144,074,760.20x = 15,507,268,948,334,942
  5. Step 5: Solve for x
    x = 15,507,268,948,334,942/144,074,760.20
  6. Step 6: Final answer
    x = 107,633,487.83

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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.