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Finding the Third Proportional to 4,987,859 and 10,721,623

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Solution

The third proportional to 4,987,859 and 10,721,623 is: 23,046,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987,859 : 10,721,623 = 10,721,623 : x
  2. Step 2: Convert to fraction form
    4,987,859/10,721,623 = 10,721,623/x
  3. Step 3: Cross multiply
    4,987,859x = 10,721,623 × 10,721,623
  4. Step 4: Simplify right side
    4,987,859x = 114,953,199,754,129
  5. Step 5: Solve for x
    x = 114,953,199,754,129/4,987,859
  6. Step 6: Final answer
    x = 23,046,601.71

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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.