Home / 39,902,816.88-55,065,854.28-21,568,102.32

Finding the Fourth Proportional to 39,902,816.88, 55,065,854.28 and 21,568,102.32

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Solution

The fourth proportional to 39,902,816.88, 55,065,854.28 and 21,568,102.32 is: 29,763,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,902,816.88 : 55,065,854.28 = 21,568,102.32 : x
  2. Step 2: Convert to fraction form
    39,902,816.88/55,065,854.28 = 21,568,102.32/x
  3. Step 3: Cross multiply
    39,902,816.88x = 55,065,854.28 × 21,568,102.32
  4. Step 4: Simplify right side
    39,902,816.88x = 1,187,665,979,449,250
  5. Step 5: Solve for x
    x = 1,187,665,979,449,250/39,902,816.88
  6. Step 6: Final answer
    x = 29,763,963.36

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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.