Home / 204,432,015.40-306,648,023.10-131,872,604.20

Finding the Fourth Proportional to 204,432,015.40, 306,648,023.10 and 131,872,604.20

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Solution

The fourth proportional to 204,432,015.40, 306,648,023.10 and 131,872,604.20 is: 197,808,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,432,015.40 : 306,648,023.10 = 131,872,604.20 : x
  2. Step 2: Convert to fraction form
    204,432,015.40/306,648,023.10 = 131,872,604.20/x
  3. Step 3: Cross multiply
    204,432,015.40x = 306,648,023.10 × 131,872,604.20
  4. Step 4: Simplify right side
    204,432,015.40x = 40,438,473,378,978,760
  5. Step 5: Solve for x
    x = 40,438,473,378,978,760/204,432,015.40
  6. Step 6: Final answer
    x = 197,808,906.30

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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.