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Finding the Fourth Proportional to 228,906,830.70, 343,360,246.05 and 219,978,621.90

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Solution

The fourth proportional to 228,906,830.70, 343,360,246.05 and 219,978,621.90 is: 329,967,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,906,830.70 : 343,360,246.05 = 219,978,621.90 : x
  2. Step 2: Convert to fraction form
    228,906,830.70/343,360,246.05 = 219,978,621.90/x
  3. Step 3: Cross multiply
    228,906,830.70x = 343,360,246.05 × 219,978,621.90
  4. Step 4: Simplify right side
    228,906,830.70x = 75,531,913,741,323,920
  5. Step 5: Solve for x
    x = 75,531,913,741,323,920/228,906,830.70
  6. Step 6: Final answer
    x = 329,967,932.85

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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.