Home / 39,521,584.38-54,538,612.52-21,881,271.54

Finding the Fourth Proportional to 39,521,584.38, 54,538,612.52 and 21,881,271.54

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Solution

The fourth proportional to 39,521,584.38, 54,538,612.52 and 21,881,271.54 is: 30,195,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,584.38 : 54,538,612.52 = 21,881,271.54 : x
  2. Step 2: Convert to fraction form
    39,521,584.38/54,538,612.52 = 21,881,271.54/x
  3. Step 3: Cross multiply
    39,521,584.38x = 54,538,612.52 × 21,881,271.54
  4. Step 4: Simplify right side
    39,521,584.38x = 1,193,374,189,964,963.75
  5. Step 5: Solve for x
    x = 1,193,374,189,964,963.75/39,521,584.38
  6. Step 6: Final answer
    x = 30,195,504.78

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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.