Home / 278,680,074.87-417,743,995.41-130,863,027.74

Finding the Fourth Proportional to 278,680,074.87, 417,743,995.41 and 130,863,027.74

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Solution

The fourth proportional to 278,680,074.87, 417,743,995.41 and 130,863,027.74 is: 196,164,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,680,074.87 : 417,743,995.41 = 130,863,027.74 : x
  2. Step 2: Convert to fraction form
    278,680,074.87/417,743,995.41 = 130,863,027.74/x
  3. Step 3: Cross multiply
    278,680,074.87x = 417,743,995.41 × 130,863,027.74
  4. Step 4: Simplify right side
    278,680,074.87x = 54,667,244,060,601,632
  5. Step 5: Solve for x
    x = 54,667,244,060,601,632/278,680,074.87
  6. Step 6: Final answer
    x = 196,164,882.21

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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.