Home / 276,309,318.78-381,340,296.18-157,260,855.97

Finding the Fourth Proportional to 276,309,318.78, 381,340,296.18 and 157,260,855.97

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Solution

The fourth proportional to 276,309,318.78, 381,340,296.18 and 157,260,855.97 is: 217,039,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,309,318.78 : 381,340,296.18 = 157,260,855.97 : x
  2. Step 2: Convert to fraction form
    276,309,318.78/381,340,296.18 = 157,260,855.97/x
  3. Step 3: Cross multiply
    276,309,318.78x = 381,340,296.18 × 157,260,855.97
  4. Step 4: Simplify right side
    276,309,318.78x = 59,969,901,393,120,120
  5. Step 5: Solve for x
    x = 59,969,901,393,120,120/276,309,318.78
  6. Step 6: Final answer
    x = 217,039,011.42

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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.