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Finding the Third Proportional to 8,518,615 and 18,609,278

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Solution

The third proportional to 8,518,615 and 18,609,278 is: 40,652,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518,615 : 18,609,278 = 18,609,278 : x
  2. Step 2: Convert to fraction form
    8,518,615/18,609,278 = 18,609,278/x
  3. Step 3: Cross multiply
    8,518,615x = 18,609,278 × 18,609,278
  4. Step 4: Simplify right side
    8,518,615x = 346,305,227,681,284
  5. Step 5: Solve for x
    x = 346,305,227,681,284/8,518,615
  6. Step 6: Final answer
    x = 40,652,761.94

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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.