Home / 207,586,870.60-311,380,305.90-131,145,680.20

Finding the Fourth Proportional to 207,586,870.60, 311,380,305.90 and 131,145,680.20

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Solution

The fourth proportional to 207,586,870.60, 311,380,305.90 and 131,145,680.20 is: 196,718,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,870.60 : 311,380,305.90 = 131,145,680.20 : x
  2. Step 2: Convert to fraction form
    207,586,870.60/311,380,305.90 = 131,145,680.20/x
  3. Step 3: Cross multiply
    207,586,870.60x = 311,380,305.90 × 131,145,680.20
  4. Step 4: Simplify right side
    207,586,870.60x = 40,836,182,018,139,568
  5. Step 5: Solve for x
    x = 40,836,182,018,139,568/207,586,870.60
  6. Step 6: Final answer
    x = 196,718,520.30

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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.