Home / 39,278,513.97-54,206,031.03-21,874,859.18

Finding the Fourth Proportional to 39,278,513.97, 54,206,031.03 and 21,874,859.18

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Solution

The fourth proportional to 39,278,513.97, 54,206,031.03 and 21,874,859.18 is: 30,188,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278,513.97 : 54,206,031.03 = 21,874,859.18 : x
  2. Step 2: Convert to fraction form
    39,278,513.97/54,206,031.03 = 21,874,859.18/x
  3. Step 3: Cross multiply
    39,278,513.97x = 54,206,031.03 × 21,874,859.18
  4. Step 4: Simplify right side
    39,278,513.97x = 1,185,749,295,216,930.25
  5. Step 5: Solve for x
    x = 1,185,749,295,216,930.25/39,278,513.97
  6. Step 6: Final answer
    x = 30,188,242.26

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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.