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Finding the Third Proportional to 2,879,678 and 6,221,172

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Solution

The third proportional to 2,879,678 and 6,221,172 is: 13,440,037.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879,678 : 6,221,172 = 6,221,172 : x
  2. Step 2: Convert to fraction form
    2,879,678/6,221,172 = 6,221,172/x
  3. Step 3: Cross multiply
    2,879,678x = 6,221,172 × 6,221,172
  4. Step 4: Simplify right side
    2,879,678x = 38,702,981,053,584
  5. Step 5: Solve for x
    x = 38,702,981,053,584/2,879,678
  6. Step 6: Final answer
    x = 13,440,037.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.