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Finding the Fourth Proportional to 215,662,863.85, 323,494,295.78 and 215,662,863.85

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Solution

The fourth proportional to 215,662,863.85, 323,494,295.78 and 215,662,863.85 is: 323,494,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,662,863.85 : 323,494,295.78 = 215,662,863.85 : x
  2. Step 2: Convert to fraction form
    215,662,863.85/323,494,295.78 = 215,662,863.85/x
  3. Step 3: Cross multiply
    215,662,863.85x = 323,494,295.78 × 215,662,863.85
  4. Step 4: Simplify right side
    215,662,863.85x = 69,765,706,265,975,448
  5. Step 5: Solve for x
    x = 69,765,706,265,975,448/215,662,863.85
  6. Step 6: Final answer
    x = 323,494,295.78

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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.