Home / 408,089,622.30-612,134,433.45-392,217,251.10

Finding the Fourth Proportional to 408,089,622.30, 612,134,433.45 and 392,217,251.10

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Solution

The fourth proportional to 408,089,622.30, 612,134,433.45 and 392,217,251.10 is: 588,325,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,089,622.30 : 612,134,433.45 = 392,217,251.10 : x
  2. Step 2: Convert to fraction form
    408,089,622.30/612,134,433.45 = 392,217,251.10/x
  3. Step 3: Cross multiply
    408,089,622.30x = 612,134,433.45 × 392,217,251.10
  4. Step 4: Simplify right side
    408,089,622.30x = 240,089,684,791,414,912
  5. Step 5: Solve for x
    x = 240,089,684,791,414,912/408,089,622.30
  6. Step 6: Final answer
    x = 588,325,876.65

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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.