Home / 3,942,141.18-5,440,154.31-2,131,305.18

Finding the Fourth Proportional to 3,942,141.18, 5,440,154.31 and 2,131,305.18

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Solution

The fourth proportional to 3,942,141.18, 5,440,154.31 and 2,131,305.18 is: 2,941,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,141.18 : 5,440,154.31 = 2,131,305.18 : x
  2. Step 2: Convert to fraction form
    3,942,141.18/5,440,154.31 = 2,131,305.18/x
  3. Step 3: Cross multiply
    3,942,141.18x = 5,440,154.31 × 2,131,305.18
  4. Step 4: Simplify right side
    3,942,141.18x = 11,594,629,060,902.33
  5. Step 5: Solve for x
    x = 11,594,629,060,902.33/3,942,141.18
  6. Step 6: Final answer
    x = 2,941,200.87

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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.