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Finding the Third Proportional to 143,917,449 and 221,074,815

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Solution

The third proportional to 143,917,449 and 221,074,815 is: 339,597,972.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,917,449 : 221,074,815 = 221,074,815 : x
  2. Step 2: Convert to fraction form
    143,917,449/221,074,815 = 221,074,815/x
  3. Step 3: Cross multiply
    143,917,449x = 221,074,815 × 221,074,815
  4. Step 4: Simplify right side
    143,917,449x = 48,874,073,827,284,224
  5. Step 5: Solve for x
    x = 48,874,073,827,284,224/143,917,449
  6. Step 6: Final answer
    x = 339,597,972.08

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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.