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Finding the Third Proportional to 121,647,425 and 251,917,645

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Solution

The third proportional to 121,647,425 and 251,917,645 is: 521,692,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,647,425 : 251,917,645 = 251,917,645 : x
  2. Step 2: Convert to fraction form
    121,647,425/251,917,645 = 251,917,645/x
  3. Step 3: Cross multiply
    121,647,425x = 251,917,645 × 251,917,645
  4. Step 4: Simplify right side
    121,647,425x = 63,462,499,862,346,024
  5. Step 5: Solve for x
    x = 63,462,499,862,346,024/121,647,425
  6. Step 6: Final answer
    x = 521,692,093.87

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.