Home / 207,861,643.60-311,456,542.20-131,047,205.20

Finding the Fourth Proportional to 207,861,643.60, 311,456,542.20 and 131,047,205.20

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Solution

The fourth proportional to 207,861,643.60, 311,456,542.20 and 131,047,205.20 is: 196,359,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,861,643.60 : 311,456,542.20 = 131,047,205.20 : x
  2. Step 2: Convert to fraction form
    207,861,643.60/311,456,542.20 = 131,047,205.20/x
  3. Step 3: Cross multiply
    207,861,643.60x = 311,456,542.20 × 131,047,205.20
  4. Step 4: Simplify right side
    207,861,643.60x = 40,815,509,396,565,856
  5. Step 5: Solve for x
    x = 40,815,509,396,565,856/207,861,643.60
  6. Step 6: Final answer
    x = 196,359,023.67

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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.