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Finding the Third Proportional to 4,309,818 and 9,376,311

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Solution

The third proportional to 4,309,818 and 9,376,311 is: 20,398,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309,818 : 9,376,311 = 9,376,311 : x
  2. Step 2: Convert to fraction form
    4,309,818/9,376,311 = 9,376,311/x
  3. Step 3: Cross multiply
    4,309,818x = 9,376,311 × 9,376,311
  4. Step 4: Simplify right side
    4,309,818x = 87,915,207,968,721
  5. Step 5: Solve for x
    x = 87,915,207,968,721/4,309,818
  6. Step 6: Final answer
    x = 20,398,821.47

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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.