Home / 323,769,836.32-485,415,408.96-168,100,138.72

Finding the Fourth Proportional to 323,769,836.32, 485,415,408.96 and 168,100,138.72

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Solution

The fourth proportional to 323,769,836.32, 485,415,408.96 and 168,100,138.72 is: 252,025,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,769,836.32 : 485,415,408.96 = 168,100,138.72 : x
  2. Step 2: Convert to fraction form
    323,769,836.32/485,415,408.96 = 168,100,138.72/x
  3. Step 3: Cross multiply
    323,769,836.32x = 485,415,408.96 × 168,100,138.72
  4. Step 4: Simplify right side
    323,769,836.32x = 81,598,397,583,001,520
  5. Step 5: Solve for x
    x = 81,598,397,583,001,520/323,769,836.32
  6. Step 6: Final answer
    x = 252,025,940.74

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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.