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Finding the Third Proportional to 12,981,768 and 20,556,297

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Solution

The third proportional to 12,981,768 and 20,556,297 is: 32,550,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981,768 : 20,556,297 = 20,556,297 : x
  2. Step 2: Convert to fraction form
    12,981,768/20,556,297 = 20,556,297/x
  3. Step 3: Cross multiply
    12,981,768x = 20,556,297 × 20,556,297
  4. Step 4: Simplify right side
    12,981,768x = 422,561,346,352,209
  5. Step 5: Solve for x
    x = 422,561,346,352,209/12,981,768
  6. Step 6: Final answer
    x = 32,550,369.59

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.