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Finding the Third Proportional to 12,086,843 and 18,742,989

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Solution

The third proportional to 12,086,843 and 18,742,989 is: 29,064,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086,843 : 18,742,989 = 18,742,989 : x
  2. Step 2: Convert to fraction form
    12,086,843/18,742,989 = 18,742,989/x
  3. Step 3: Cross multiply
    12,086,843x = 18,742,989 × 18,742,989
  4. Step 4: Simplify right side
    12,086,843x = 351,299,636,654,121
  5. Step 5: Solve for x
    x = 351,299,636,654,121/12,086,843
  6. Step 6: Final answer
    x = 29,064,631.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.