Home / 39,930,081.57-55,103,512.48-21,595,367.07

Finding the Fourth Proportional to 39,930,081.57, 55,103,512.48 and 21,595,367.07

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Solution

The fourth proportional to 39,930,081.57, 55,103,512.48 and 21,595,367.07 is: 29,801,606.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930,081.57 : 55,103,512.48 = 21,595,367.07 : x
  2. Step 2: Convert to fraction form
    39,930,081.57/55,103,512.48 = 21,595,367.07/x
  3. Step 3: Cross multiply
    39,930,081.57x = 55,103,512.48 × 21,595,367.07
  4. Step 4: Simplify right side
    39,930,081.57x = 1,189,980,578,797,937.50
  5. Step 5: Solve for x
    x = 1,189,980,578,797,937.50/39,930,081.57
  6. Step 6: Final answer
    x = 29,801,606.51

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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.