Home / 3,942,141.68-5,440,155-2,131,305.68

Finding the Fourth Proportional to 3,942,141.68, 5,440,155 and 2,131,305.68

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Solution

The fourth proportional to 3,942,141.68, 5,440,155 and 2,131,305.68 is: 2,941,201.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,141.68 : 5,440,155 = 2,131,305.68 : x
  2. Step 2: Convert to fraction form
    3,942,141.68/5,440,155 = 2,131,305.68/x
  3. Step 3: Cross multiply
    3,942,141.68x = 5,440,155 × 2,131,305.68
  4. Step 4: Simplify right side
    3,942,141.68x = 11,594,633,251,580.40
  5. Step 5: Solve for x
    x = 11,594,633,251,580.40/3,942,141.68
  6. Step 6: Final answer
    x = 2,941,201.56

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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.