Home / 207,586,190.10-311,379,285.15-131,144,999.70

Finding the Fourth Proportional to 207,586,190.10, 311,379,285.15 and 131,144,999.70

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Solution

The fourth proportional to 207,586,190.10, 311,379,285.15 and 131,144,999.70 is: 196,717,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,190.10 : 311,379,285.15 = 131,144,999.70 : x
  2. Step 2: Convert to fraction form
    207,586,190.10/311,379,285.15 = 131,144,999.70/x
  3. Step 3: Cross multiply
    207,586,190.10x = 311,379,285.15 × 131,144,999.70
  4. Step 4: Simplify right side
    207,586,190.10x = 40,835,836,257,582,960
  5. Step 5: Solve for x
    x = 40,835,836,257,582,960/207,586,190.10
  6. Step 6: Final answer
    x = 196,717,499.55

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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.