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Finding the Third Proportional to 136,425,388 and 209,697,828

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Solution

The third proportional to 136,425,388 and 209,697,828 is: 322,324,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,425,388 : 209,697,828 = 209,697,828 : x
  2. Step 2: Convert to fraction form
    136,425,388/209,697,828 = 209,697,828/x
  3. Step 3: Cross multiply
    136,425,388x = 209,697,828 × 209,697,828
  4. Step 4: Simplify right side
    136,425,388x = 43,973,179,067,917,584
  5. Step 5: Solve for x
    x = 43,973,179,067,917,584/136,425,388
  6. Step 6: Final answer
    x = 322,324,016.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.