Home / 207,919,243.60-311,542,942.20-131,104,805.20

Finding the Fourth Proportional to 207,919,243.60, 311,542,942.20 and 131,104,805.20

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Solution

The fourth proportional to 207,919,243.60, 311,542,942.20 and 131,104,805.20 is: 196,445,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,919,243.60 : 311,542,942.20 = 131,104,805.20 : x
  2. Step 2: Convert to fraction form
    207,919,243.60/311,542,942.20 = 131,104,805.20/x
  3. Step 3: Cross multiply
    207,919,243.60x = 311,542,942.20 × 131,104,805.20
  4. Step 4: Simplify right side
    207,919,243.60x = 40,844,776,748,565,856
  5. Step 5: Solve for x
    x = 40,844,776,748,565,856/207,919,243.60
  6. Step 6: Final answer
    x = 196,445,389.28

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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.