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Finding the Third Proportional to 8,216,746 and 12,822,545

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Solution

The third proportional to 8,216,746 and 12,822,545 is: 20,010,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216,746 : 12,822,545 = 12,822,545 : x
  2. Step 2: Convert to fraction form
    8,216,746/12,822,545 = 12,822,545/x
  3. Step 3: Cross multiply
    8,216,746x = 12,822,545 × 12,822,545
  4. Step 4: Simplify right side
    8,216,746x = 164,417,660,277,025
  5. Step 5: Solve for x
    x = 164,417,660,277,025/8,216,746
  6. Step 6: Final answer
    x = 20,010,069.71

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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.