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Finding the Third Proportional to 18,288,309 and 39,329,322

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Solution

The third proportional to 18,288,309 and 39,329,322 is: 84,578,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288,309 : 39,329,322 = 39,329,322 : x
  2. Step 2: Convert to fraction form
    18,288,309/39,329,322 = 39,329,322/x
  3. Step 3: Cross multiply
    18,288,309x = 39,329,322 × 39,329,322
  4. Step 4: Simplify right side
    18,288,309x = 1,546,795,568,979,684
  5. Step 5: Solve for x
    x = 1,546,795,568,979,684/18,288,309
  6. Step 6: Final answer
    x = 84,578,381.14

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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.