Home / 207,861,648.60-311,456,549.70-131,047,210.20

Finding the Fourth Proportional to 207,861,648.60, 311,456,549.70 and 131,047,210.20

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Solution

The fourth proportional to 207,861,648.60, 311,456,549.70 and 131,047,210.20 is: 196,359,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,861,648.60 : 311,456,549.70 = 131,047,210.20 : x
  2. Step 2: Convert to fraction form
    207,861,648.60/311,456,549.70 = 131,047,210.20/x
  3. Step 3: Cross multiply
    207,861,648.60x = 311,456,549.70 × 131,047,210.20
  4. Step 4: Simplify right side
    207,861,648.60x = 40,815,511,936,702,648
  5. Step 5: Solve for x
    x = 40,815,511,936,702,648/207,861,648.60
  6. Step 6: Final answer
    x = 196,359,031.17

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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.