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Finding the Third Proportional to 12,991,731.75 and 27,902,556

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Solution

The third proportional to 12,991,731.75 and 27,902,556 is: 59,926,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,991,731.75 : 27,902,556 = 27,902,556 : x
  2. Step 2: Convert to fraction form
    12,991,731.75/27,902,556 = 27,902,556/x
  3. Step 3: Cross multiply
    12,991,731.75x = 27,902,556 × 27,902,556
  4. Step 4: Simplify right side
    12,991,731.75x = 778,552,631,333,136
  5. Step 5: Solve for x
    x = 778,552,631,333,136/12,991,731.75
  6. Step 6: Final answer
    x = 59,926,778.53

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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.