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Finding the Third Proportional to 4,387,351 and 9,782,918

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Solution

The third proportional to 4,387,351 and 9,782,918 is: 21,813,956.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387,351 : 9,782,918 = 9,782,918 : x
  2. Step 2: Convert to fraction form
    4,387,351/9,782,918 = 9,782,918/x
  3. Step 3: Cross multiply
    4,387,351x = 9,782,918 × 9,782,918
  4. Step 4: Simplify right side
    4,387,351x = 95,705,484,594,724
  5. Step 5: Solve for x
    x = 95,705,484,594,724/4,387,351
  6. Step 6: Final answer
    x = 21,813,956.67

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.