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Finding the Third Proportional to 81,108,212 and 125,669,808

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Solution

The third proportional to 81,108,212 and 125,669,808 is: 194,713,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,108,212 : 125,669,808 = 125,669,808 : x
  2. Step 2: Convert to fraction form
    81,108,212/125,669,808 = 125,669,808/x
  3. Step 3: Cross multiply
    81,108,212x = 125,669,808 × 125,669,808
  4. Step 4: Simplify right side
    81,108,212x = 15,792,900,642,756,864
  5. Step 5: Solve for x
    x = 15,792,900,642,756,864/81,108,212
  6. Step 6: Final answer
    x = 194,713,953.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.