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Finding the Third Proportional to 8,616,990 and 18,670,086

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Solution

The third proportional to 8,616,990 and 18,670,086 is: 40,451,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616,990 : 18,670,086 = 18,670,086 : x
  2. Step 2: Convert to fraction form
    8,616,990/18,670,086 = 18,670,086/x
  3. Step 3: Cross multiply
    8,616,990x = 18,670,086 × 18,670,086
  4. Step 4: Simplify right side
    8,616,990x = 348,572,111,247,396
  5. Step 5: Solve for x
    x = 348,572,111,247,396/8,616,990
  6. Step 6: Final answer
    x = 40,451,725.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.