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Finding the Third Proportional to 8,423,028 and 18,122,778

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Solution

The third proportional to 8,423,028 and 18,122,778 is: 38,992,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423,028 : 18,122,778 = 18,122,778 : x
  2. Step 2: Convert to fraction form
    8,423,028/18,122,778 = 18,122,778/x
  3. Step 3: Cross multiply
    8,423,028x = 18,122,778 × 18,122,778
  4. Step 4: Simplify right side
    8,423,028x = 328,435,082,437,284
  5. Step 5: Solve for x
    x = 328,435,082,437,284/8,423,028
  6. Step 6: Final answer
    x = 38,992,519.37

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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.