Home / 40,542,357.50-55,948,403.52-21,957,486.64

Finding the Fourth Proportional to 40,542,357.50, 55,948,403.52 and 21,957,486.64

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Solution

The fourth proportional to 40,542,357.50, 55,948,403.52 and 21,957,486.64 is: 30,301,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,542,357.50 : 55,948,403.52 = 21,957,486.64 : x
  2. Step 2: Convert to fraction form
    40,542,357.50/55,948,403.52 = 21,957,486.64/x
  3. Step 3: Cross multiply
    40,542,357.50x = 55,948,403.52 × 21,957,486.64
  4. Step 4: Simplify right side
    40,542,357.50x = 1,228,486,322,819,729
  5. Step 5: Solve for x
    x = 1,228,486,322,819,729/40,542,357.50
  6. Step 6: Final answer
    x = 30,301,304.58

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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.