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Finding the Third Proportional to 13,678,878 and 21,346,467

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Solution

The third proportional to 13,678,878 and 21,346,467 is: 33,312,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678,878 : 21,346,467 = 21,346,467 : x
  2. Step 2: Convert to fraction form
    13,678,878/21,346,467 = 21,346,467/x
  3. Step 3: Cross multiply
    13,678,878x = 21,346,467 × 21,346,467
  4. Step 4: Simplify right side
    13,678,878x = 455,671,653,382,089
  5. Step 5: Solve for x
    x = 455,671,653,382,089/13,678,878
  6. Step 6: Final answer
    x = 33,312,063.56

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.