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Finding the Third Proportional to 8,603,810 and 18,724,911

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Solution

The third proportional to 8,603,810 and 18,724,911 is: 40,751,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603,810 : 18,724,911 = 18,724,911 : x
  2. Step 2: Convert to fraction form
    8,603,810/18,724,911 = 18,724,911/x
  3. Step 3: Cross multiply
    8,603,810x = 18,724,911 × 18,724,911
  4. Step 4: Simplify right side
    8,603,810x = 350,622,291,957,921
  5. Step 5: Solve for x
    x = 350,622,291,957,921/8,603,810
  6. Step 6: Final answer
    x = 40,751,979.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.