Home / 667,307,410.20-1,000,961,115.30-621,957,778.20

Finding the Fourth Proportional to 667,307,410.20, 1,000,961,115.30 and 621,957,778.20

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Solution

The fourth proportional to 667,307,410.20, 1,000,961,115.30 and 621,957,778.20 is: 932,936,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,307,410.20 : 1,000,961,115.30 = 621,957,778.20 : x
  2. Step 2: Convert to fraction form
    667,307,410.20/1,000,961,115.30 = 621,957,778.20/x
  3. Step 3: Cross multiply
    667,307,410.20x = 1,000,961,115.30 × 621,957,778.20
  4. Step 4: Simplify right side
    667,307,410.20x = 622,555,551,336,582,016
  5. Step 5: Solve for x
    x = 622,555,551,336,582,016/667,307,410.20
  6. Step 6: Final answer
    x = 932,936,667.30

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1.5x scale

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.