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Finding the Third Proportional to 68,874,110 and 149,854,590

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Solution

The third proportional to 68,874,110 and 149,854,590 is: 326,049,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874,110 : 149,854,590 = 149,854,590 : x
  2. Step 2: Convert to fraction form
    68,874,110/149,854,590 = 149,854,590/x
  3. Step 3: Cross multiply
    68,874,110x = 149,854,590 × 149,854,590
  4. Step 4: Simplify right side
    68,874,110x = 22,456,398,144,068,100
  5. Step 5: Solve for x
    x = 22,456,398,144,068,100/68,874,110
  6. Step 6: Final answer
    x = 326,049,921.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.