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Finding the Third Proportional to 18,045,910 and 38,968,220

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Solution

The third proportional to 18,045,910 and 38,968,220 is: 84,147,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045,910 : 38,968,220 = 38,968,220 : x
  2. Step 2: Convert to fraction form
    18,045,910/38,968,220 = 38,968,220/x
  3. Step 3: Cross multiply
    18,045,910x = 38,968,220 × 38,968,220
  4. Step 4: Simplify right side
    18,045,910x = 1,518,522,169,968,400
  5. Step 5: Solve for x
    x = 1,518,522,169,968,400/18,045,910
  6. Step 6: Final answer
    x = 84,147,719.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.