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Finding the Third Proportional to 9,815,508 and 20,890,728

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Solution

The third proportional to 9,815,508 and 20,890,728 is: 44,462,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815,508 : 20,890,728 = 20,890,728 : x
  2. Step 2: Convert to fraction form
    9,815,508/20,890,728 = 20,890,728/x
  3. Step 3: Cross multiply
    9,815,508x = 20,890,728 × 20,890,728
  4. Step 4: Simplify right side
    9,815,508x = 436,422,516,369,984
  5. Step 5: Solve for x
    x = 436,422,516,369,984/9,815,508
  6. Step 6: Final answer
    x = 44,462,550.12

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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.