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Finding the Third Proportional to 9,890,647 and 20,844,015

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Solution

The third proportional to 9,890,647 and 20,844,015 is: 43,927,658.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890,647 : 20,844,015 = 20,844,015 : x
  2. Step 2: Convert to fraction form
    9,890,647/20,844,015 = 20,844,015/x
  3. Step 3: Cross multiply
    9,890,647x = 20,844,015 × 20,844,015
  4. Step 4: Simplify right side
    9,890,647x = 434,472,961,320,225
  5. Step 5: Solve for x
    x = 434,472,961,320,225/9,890,647
  6. Step 6: Final answer
    x = 43,927,658.25

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.