Home / 509,969,335.90-764,954,003.85-165,170,415.10

Finding the Fourth Proportional to 509,969,335.90, 764,954,003.85 and 165,170,415.10

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Solution

The fourth proportional to 509,969,335.90, 764,954,003.85 and 165,170,415.10 is: 247,755,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,969,335.90 : 764,954,003.85 = 165,170,415.10 : x
  2. Step 2: Convert to fraction form
    509,969,335.90/764,954,003.85 = 165,170,415.10/x
  3. Step 3: Cross multiply
    509,969,335.90x = 764,954,003.85 × 165,170,415.10
  4. Step 4: Simplify right side
    509,969,335.90x = 126,347,770,348,311,504
  5. Step 5: Solve for x
    x = 126,347,770,348,311,504/509,969,335.90
  6. Step 6: Final answer
    x = 247,755,622.65

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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.