Home / 39,278,538.39-54,206,064.68-21,874,883.55

Finding the Fourth Proportional to 39,278,538.39, 54,206,064.68 and 21,874,883.55

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Solution

The fourth proportional to 39,278,538.39, 54,206,064.68 and 21,874,883.55 is: 30,188,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278,538.39 : 54,206,064.68 = 21,874,883.55 : x
  2. Step 2: Convert to fraction form
    39,278,538.39/54,206,064.68 = 21,874,883.55/x
  3. Step 3: Cross multiply
    39,278,538.39x = 54,206,064.68 × 21,874,883.55
  4. Step 4: Simplify right side
    39,278,538.39x = 1,185,751,352,578,768
  5. Step 5: Solve for x
    x = 1,185,751,352,578,768/39,278,538.39
  6. Step 6: Final answer
    x = 30,188,275.87

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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.