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Finding the Third Proportional to 7,638,272 and 16,639,936

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Solution

The third proportional to 7,638,272 and 16,639,936 is: 36,250,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,272 : 16,639,936 = 16,639,936 : x
  2. Step 2: Convert to fraction form
    7,638,272/16,639,936 = 16,639,936/x
  3. Step 3: Cross multiply
    7,638,272x = 16,639,936 × 16,639,936
  4. Step 4: Simplify right side
    7,638,272x = 276,887,470,084,096
  5. Step 5: Solve for x
    x = 276,887,470,084,096/7,638,272
  6. Step 6: Final answer
    x = 36,250,014.41

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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.