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Finding the Third Proportional to 12,128,161.50 and 18,173,556

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Solution

The third proportional to 12,128,161.50 and 18,173,556 is: 27,232,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,161.50 : 18,173,556 = 18,173,556 : x
  2. Step 2: Convert to fraction form
    12,128,161.50/18,173,556 = 18,173,556/x
  3. Step 3: Cross multiply
    12,128,161.50x = 18,173,556 × 18,173,556
  4. Step 4: Simplify right side
    12,128,161.50x = 330,278,137,685,136
  5. Step 5: Solve for x
    x = 330,278,137,685,136/12,128,161.50
  6. Step 6: Final answer
    x = 27,232,333.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.