Home / 39,957,923.70-55,141,932.60-21,623,209.20

Finding the Fourth Proportional to 39,957,923.70, 55,141,932.60 and 21,623,209.20

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Solution

The fourth proportional to 39,957,923.70, 55,141,932.60 and 21,623,209.20 is: 29,840,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,923.70 : 55,141,932.60 = 21,623,209.20 : x
  2. Step 2: Convert to fraction form
    39,957,923.70/55,141,932.60 = 21,623,209.20/x
  3. Step 3: Cross multiply
    39,957,923.70x = 55,141,932.60 × 21,623,209.20
  4. Step 4: Simplify right side
    39,957,923.70x = 1,192,345,544,302,100
  5. Step 5: Solve for x
    x = 1,192,345,544,302,100/39,957,923.70
  6. Step 6: Final answer
    x = 29,840,027.56

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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.