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Finding the Third Proportional to 8,621,907 and 11,988,072

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Solution

The third proportional to 8,621,907 and 11,988,072 is: 16,668,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621,907 : 11,988,072 = 11,988,072 : x
  2. Step 2: Convert to fraction form
    8,621,907/11,988,072 = 11,988,072/x
  3. Step 3: Cross multiply
    8,621,907x = 11,988,072 × 11,988,072
  4. Step 4: Simplify right side
    8,621,907x = 143,713,870,277,184
  5. Step 5: Solve for x
    x = 143,713,870,277,184/8,621,907
  6. Step 6: Final answer
    x = 16,668,455.17

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.