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Finding the Third Proportional to 8,216,743 and 12,822,539

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Solution

The third proportional to 8,216,743 and 12,822,539 is: 20,010,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216,743 : 12,822,539 = 12,822,539 : x
  2. Step 2: Convert to fraction form
    8,216,743/12,822,539 = 12,822,539/x
  3. Step 3: Cross multiply
    8,216,743x = 12,822,539 × 12,822,539
  4. Step 4: Simplify right side
    8,216,743x = 164,417,506,406,521
  5. Step 5: Solve for x
    x = 164,417,506,406,521/8,216,743
  6. Step 6: Final answer
    x = 20,010,058.29

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.