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Finding the Third Proportional to 18,777,992 and 40,036,315

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Solution

The third proportional to 18,777,992 and 40,036,315 is: 85,360,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777,992 : 40,036,315 = 40,036,315 : x
  2. Step 2: Convert to fraction form
    18,777,992/40,036,315 = 40,036,315/x
  3. Step 3: Cross multiply
    18,777,992x = 40,036,315 × 40,036,315
  4. Step 4: Simplify right side
    18,777,992x = 1,602,906,518,779,225
  5. Step 5: Solve for x
    x = 1,602,906,518,779,225/18,777,992
  6. Step 6: Final answer
    x = 85,360,911.79

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.