Home / 276,309,319.78-381,340,297.56-157,260,856.97

Finding the Fourth Proportional to 276,309,319.78, 381,340,297.56 and 157,260,856.97

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Solution

The fourth proportional to 276,309,319.78, 381,340,297.56 and 157,260,856.97 is: 217,039,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,309,319.78 : 381,340,297.56 = 157,260,856.97 : x
  2. Step 2: Convert to fraction form
    276,309,319.78/381,340,297.56 = 157,260,856.97/x
  3. Step 3: Cross multiply
    276,309,319.78x = 381,340,297.56 × 157,260,856.97
  4. Step 4: Simplify right side
    276,309,319.78x = 59,969,901,991,480,400
  5. Step 5: Solve for x
    x = 59,969,901,991,480,400/276,309,319.78
  6. Step 6: Final answer
    x = 217,039,012.80

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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.