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Finding the Third Proportional to 4,540,380 and 9,877,917

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Solution

The third proportional to 4,540,380 and 9,877,917 is: 21,490,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540,380 : 9,877,917 = 9,877,917 : x
  2. Step 2: Convert to fraction form
    4,540,380/9,877,917 = 9,877,917/x
  3. Step 3: Cross multiply
    4,540,380x = 9,877,917 × 9,877,917
  4. Step 4: Simplify right side
    4,540,380x = 97,573,244,258,889
  5. Step 5: Solve for x
    x = 97,573,244,258,889/4,540,380
  6. Step 6: Final answer
    x = 21,490,105.29

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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.