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Finding the Third Proportional to 9,815,505 and 20,890,722

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Solution

The third proportional to 9,815,505 and 20,890,722 is: 44,462,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815,505 : 20,890,722 = 20,890,722 : x
  2. Step 2: Convert to fraction form
    9,815,505/20,890,722 = 20,890,722/x
  3. Step 3: Cross multiply
    9,815,505x = 20,890,722 × 20,890,722
  4. Step 4: Simplify right side
    9,815,505x = 436,422,265,681,284
  5. Step 5: Solve for x
    x = 436,422,265,681,284/9,815,505
  6. Step 6: Final answer
    x = 44,462,538.17

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.