Home / 3,149,739-4,347,983.40-2,117,844.90

Finding the Fourth Proportional to 3,149,739, 4,347,983.40 and 2,117,844.90

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Solution

The fourth proportional to 3,149,739, 4,347,983.40 and 2,117,844.90 is: 2,923,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149,739 : 4,347,983.40 = 2,117,844.90 : x
  2. Step 2: Convert to fraction form
    3,149,739/4,347,983.40 = 2,117,844.90/x
  3. Step 3: Cross multiply
    3,149,739x = 4,347,983.40 × 2,117,844.90
  4. Step 4: Simplify right side
    3,149,739x = 9,208,354,468,974.66
  5. Step 5: Solve for x
    x = 9,208,354,468,974.66/3,149,739
  6. Step 6: Final answer
    x = 2,923,529.37

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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.