Home / 39,278,539.39-54,206,066.06-21,874,884.55

Finding the Fourth Proportional to 39,278,539.39, 54,206,066.06 and 21,874,884.55

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Solution

The fourth proportional to 39,278,539.39, 54,206,066.06 and 21,874,884.55 is: 30,188,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278,539.39 : 54,206,066.06 = 21,874,884.55 : x
  2. Step 2: Convert to fraction form
    39,278,539.39/54,206,066.06 = 21,874,884.55/x
  3. Step 3: Cross multiply
    39,278,539.39x = 54,206,066.06 × 21,874,884.55
  4. Step 4: Simplify right side
    39,278,539.39x = 1,185,751,436,972,173.50
  5. Step 5: Solve for x
    x = 1,185,751,436,972,173.50/39,278,539.39
  6. Step 6: Final answer
    x = 30,188,277.25

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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.