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Finding the Third Proportional to 3,318,678 and 7,221,388.50

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Solution

The third proportional to 3,318,678 and 7,221,388.50 is: 15,713,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,678 : 7,221,388.50 = 7,221,388.50 : x
  2. Step 2: Convert to fraction form
    3,318,678/7,221,388.50 = 7,221,388.50/x
  3. Step 3: Cross multiply
    3,318,678x = 7,221,388.50 × 7,221,388.50
  4. Step 4: Simplify right side
    3,318,678x = 52,148,451,867,932.25
  5. Step 5: Solve for x
    x = 52,148,451,867,932.25/3,318,678
  6. Step 6: Final answer
    x = 15,713,622.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.