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Finding the Third Proportional to 6,216,915 and 13,378,615

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Solution

The third proportional to 6,216,915 and 13,378,615 is: 28,790,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216,915 : 13,378,615 = 13,378,615 : x
  2. Step 2: Convert to fraction form
    6,216,915/13,378,615 = 13,378,615/x
  3. Step 3: Cross multiply
    6,216,915x = 13,378,615 × 13,378,615
  4. Step 4: Simplify right side
    6,216,915x = 178,987,339,318,225
  5. Step 5: Solve for x
    x = 178,987,339,318,225/6,216,915
  6. Step 6: Final answer
    x = 28,790,379.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.