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Finding the Third Proportional to 18,135,020 and 38,316,910

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Solution

The third proportional to 18,135,020 and 38,316,910 is: 80,958,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135,020 : 38,316,910 = 38,316,910 : x
  2. Step 2: Convert to fraction form
    18,135,020/38,316,910 = 38,316,910/x
  3. Step 3: Cross multiply
    18,135,020x = 38,316,910 × 38,316,910
  4. Step 4: Simplify right side
    18,135,020x = 1,468,185,591,948,100
  5. Step 5: Solve for x
    x = 1,468,185,591,948,100/18,135,020
  6. Step 6: Final answer
    x = 80,958,586.86

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.