Home / 207,586,191.10-311,379,286.65-131,145,000.70

Finding the Fourth Proportional to 207,586,191.10, 311,379,286.65 and 131,145,000.70

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Solution

The fourth proportional to 207,586,191.10, 311,379,286.65 and 131,145,000.70 is: 196,717,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,191.10 : 311,379,286.65 = 131,145,000.70 : x
  2. Step 2: Convert to fraction form
    207,586,191.10/311,379,286.65 = 131,145,000.70/x
  3. Step 3: Cross multiply
    207,586,191.10x = 311,379,286.65 × 131,145,000.70
  4. Step 4: Simplify right side
    207,586,191.10x = 40,835,836,765,679,752
  5. Step 5: Solve for x
    x = 40,835,836,765,679,752/207,586,191.10
  6. Step 6: Final answer
    x = 196,717,501.05

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Similar ratio
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1.5x scale

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.