Home / 39,363,578.20-54,321,761.28-21,959,923.40

Finding the Fourth Proportional to 39,363,578.20, 54,321,761.28 and 21,959,923.40

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Solution

The fourth proportional to 39,363,578.20, 54,321,761.28 and 21,959,923.40 is: 30,304,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,363,578.20 : 54,321,761.28 = 21,959,923.40 : x
  2. Step 2: Convert to fraction form
    39,363,578.20/54,321,761.28 = 21,959,923.40/x
  3. Step 3: Cross multiply
    39,363,578.20x = 54,321,761.28 × 21,959,923.40
  4. Step 4: Simplify right side
    39,363,578.20x = 1,192,901,716,661,886
  5. Step 5: Solve for x
    x = 1,192,901,716,661,886/39,363,578.20
  6. Step 6: Final answer
    x = 30,304,707.33

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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.