Home / 39,941,942.80-55,119,694.44-21,607,067.92

Finding the Fourth Proportional to 39,941,942.80, 55,119,694.44 and 21,607,067.92

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Solution

The fourth proportional to 39,941,942.80, 55,119,694.44 and 21,607,067.92 is: 29,817,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941,942.80 : 55,119,694.44 = 21,607,067.92 : x
  2. Step 2: Convert to fraction form
    39,941,942.80/55,119,694.44 = 21,607,067.92/x
  3. Step 3: Cross multiply
    39,941,942.80x = 55,119,694.44 × 21,607,067.92
  4. Step 4: Simplify right side
    39,941,942.80x = 1,190,974,981,494,726.50
  5. Step 5: Solve for x
    x = 1,190,974,981,494,726.50/39,941,942.80
  6. Step 6: Final answer
    x = 29,817,652.77

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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.