Home / 278,719,387.35-418,052,066.07-84,632,508.63

Finding the Fourth Proportional to 278,719,387.35, 418,052,066.07 and 84,632,508.63

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Solution

The fourth proportional to 278,719,387.35, 418,052,066.07 and 84,632,508.63 is: 126,940,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,719,387.35 : 418,052,066.07 = 84,632,508.63 : x
  2. Step 2: Convert to fraction form
    278,719,387.35/418,052,066.07 = 84,632,508.63/x
  3. Step 3: Cross multiply
    278,719,387.35x = 418,052,066.07 × 84,632,508.63
  4. Step 4: Simplify right side
    278,719,387.35x = 35,380,795,089,458,604
  5. Step 5: Solve for x
    x = 35,380,795,089,458,604/278,719,387.35
  6. Step 6: Final answer
    x = 126,940,559.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.