Home / 278,719,502.28-418,052,238.18-84,632,623.56

Finding the Fourth Proportional to 278,719,502.28, 418,052,238.18 and 84,632,623.56

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Solution

The fourth proportional to 278,719,502.28, 418,052,238.18 and 84,632,623.56 is: 126,940,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,719,502.28 : 418,052,238.18 = 84,632,623.56 : x
  2. Step 2: Convert to fraction form
    278,719,502.28/418,052,238.18 = 84,632,623.56/x
  3. Step 3: Cross multiply
    278,719,502.28x = 418,052,238.18 × 84,632,623.56
  4. Step 4: Simplify right side
    278,719,502.28x = 35,380,857,702,303,400
  5. Step 5: Solve for x
    x = 35,380,857,702,303,400/278,719,502.28
  6. Step 6: Final answer
    x = 126,940,732.22

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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.