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Finding the Third Proportional to 8,772,721 and 19,562,561

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Solution

The third proportional to 8,772,721 and 19,562,561 is: 43,623,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772,721 : 19,562,561 = 19,562,561 : x
  2. Step 2: Convert to fraction form
    8,772,721/19,562,561 = 19,562,561/x
  3. Step 3: Cross multiply
    8,772,721x = 19,562,561 × 19,562,561
  4. Step 4: Simplify right side
    8,772,721x = 382,693,792,878,721
  5. Step 5: Solve for x
    x = 382,693,792,878,721/8,772,721
  6. Step 6: Final answer
    x = 43,623,157.84

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.