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Finding the Third Proportional to 8,557,389 and 18,794,178

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Solution

The third proportional to 8,557,389 and 18,794,178 is: 41,276,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557,389 : 18,794,178 = 18,794,178 : x
  2. Step 2: Convert to fraction form
    8,557,389/18,794,178 = 18,794,178/x
  3. Step 3: Cross multiply
    8,557,389x = 18,794,178 × 18,794,178
  4. Step 4: Simplify right side
    8,557,389x = 353,221,126,695,684
  5. Step 5: Solve for x
    x = 353,221,126,695,684/8,557,389
  6. Step 6: Final answer
    x = 41,276,740.69

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.