Home / 207,586,849.60-311,380,274.40-131,145,659.20

Finding the Fourth Proportional to 207,586,849.60, 311,380,274.40 and 131,145,659.20

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Solution

The fourth proportional to 207,586,849.60, 311,380,274.40 and 131,145,659.20 is: 196,718,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,849.60 : 311,380,274.40 = 131,145,659.20 : x
  2. Step 2: Convert to fraction form
    207,586,849.60/311,380,274.40 = 131,145,659.20/x
  3. Step 3: Cross multiply
    207,586,849.60x = 311,380,274.40 × 131,145,659.20
  4. Step 4: Simplify right side
    207,586,849.60x = 40,836,171,348,064,880
  5. Step 5: Solve for x
    x = 40,836,171,348,064,880/207,586,849.60
  6. Step 6: Final answer
    x = 196,718,488.80

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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.