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Finding the Third Proportional to 4,987,858 and 10,721,621

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Solution

The third proportional to 4,987,858 and 10,721,621 is: 23,046,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987,858 : 10,721,621 = 10,721,621 : x
  2. Step 2: Convert to fraction form
    4,987,858/10,721,621 = 10,721,621/x
  3. Step 3: Cross multiply
    4,987,858x = 10,721,621 × 10,721,621
  4. Step 4: Simplify right side
    4,987,858x = 114,953,156,867,641
  5. Step 5: Solve for x
    x = 114,953,156,867,641/4,987,858
  6. Step 6: Final answer
    x = 23,046,597.73

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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.