Home / 39,198,067.52-54,091,917.54-21,556,817.92

Finding the Fourth Proportional to 39,198,067.52, 54,091,917.54 and 21,556,817.92

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Solution

The fourth proportional to 39,198,067.52, 54,091,917.54 and 21,556,817.92 is: 29,747,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198,067.52 : 54,091,917.54 = 21,556,817.92 : x
  2. Step 2: Convert to fraction form
    39,198,067.52/54,091,917.54 = 21,556,817.92/x
  3. Step 3: Cross multiply
    39,198,067.52x = 54,091,917.54 × 21,556,817.92
  4. Step 4: Simplify right side
    39,198,067.52x = 1,166,049,617,353,434.50
  5. Step 5: Solve for x
    x = 1,166,049,617,353,434.50/39,198,067.52
  6. Step 6: Final answer
    x = 29,747,630.21

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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.