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Finding the Third Proportional to 3,920,511 and 8,492,487

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Solution

The third proportional to 3,920,511 and 8,492,487 is: 18,396,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920,511 : 8,492,487 = 8,492,487 : x
  2. Step 2: Convert to fraction form
    3,920,511/8,492,487 = 8,492,487/x
  3. Step 3: Cross multiply
    3,920,511x = 8,492,487 × 8,492,487
  4. Step 4: Simplify right side
    3,920,511x = 72,122,335,445,169
  5. Step 5: Solve for x
    x = 72,122,335,445,169/3,920,511
  6. Step 6: Final answer
    x = 18,396,156.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.