Home / 280,587,971.13-387,126,356.31-195,812,834.97

Finding the Fourth Proportional to 280,587,971.13, 387,126,356.31 and 195,812,834.97

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Solution

The fourth proportional to 280,587,971.13, 387,126,356.31 and 195,812,834.97 is: 270,162,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,587,971.13 : 387,126,356.31 = 195,812,834.97 : x
  2. Step 2: Convert to fraction form
    280,587,971.13/387,126,356.31 = 195,812,834.97/x
  3. Step 3: Cross multiply
    280,587,971.13x = 387,126,356.31 × 195,812,834.97
  4. Step 4: Simplify right side
    280,587,971.13x = 75,804,309,320,667,456
  5. Step 5: Solve for x
    x = 75,804,309,320,667,456/280,587,971.13
  6. Step 6: Final answer
    x = 270,162,363.04

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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.