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Finding the Third Proportional to 9,751,212 and 21,000,912

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Solution

The third proportional to 9,751,212 and 21,000,912 is: 45,229,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,751,212 : 21,000,912 = 21,000,912 : x
  2. Step 2: Convert to fraction form
    9,751,212/21,000,912 = 21,000,912/x
  3. Step 3: Cross multiply
    9,751,212x = 21,000,912 × 21,000,912
  4. Step 4: Simplify right side
    9,751,212x = 441,038,304,831,744
  5. Step 5: Solve for x
    x = 441,038,304,831,744/9,751,212
  6. Step 6: Final answer
    x = 45,229,075.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.