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Finding the Third Proportional to 18,206,560 and 39,111,968

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Solution

The third proportional to 18,206,560 and 39,111,968 is: 84,021,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206,560 : 39,111,968 = 39,111,968 : x
  2. Step 2: Convert to fraction form
    18,206,560/39,111,968 = 39,111,968/x
  3. Step 3: Cross multiply
    18,206,560x = 39,111,968 × 39,111,968
  4. Step 4: Simplify right side
    18,206,560x = 1,529,746,040,833,024
  5. Step 5: Solve for x
    x = 1,529,746,040,833,024/18,206,560
  6. Step 6: Final answer
    x = 84,021,695.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.