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Finding the Third Proportional to 8,378,329 and 18,249,631

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Solution

The third proportional to 8,378,329 and 18,249,631 is: 39,751,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,329 : 18,249,631 = 18,249,631 : x
  2. Step 2: Convert to fraction form
    8,378,329/18,249,631 = 18,249,631/x
  3. Step 3: Cross multiply
    8,378,329x = 18,249,631 × 18,249,631
  4. Step 4: Simplify right side
    8,378,329x = 333,049,031,636,161
  5. Step 5: Solve for x
    x = 333,049,031,636,161/8,378,329
  6. Step 6: Final answer
    x = 39,751,247.73

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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.