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Finding the Third Proportional to 18,208,656 and 39,240,288

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Solution

The third proportional to 18,208,656 and 39,240,288 is: 84,564,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208,656 : 39,240,288 = 39,240,288 : x
  2. Step 2: Convert to fraction form
    18,208,656/39,240,288 = 39,240,288/x
  3. Step 3: Cross multiply
    18,208,656x = 39,240,288 × 39,240,288
  4. Step 4: Simplify right side
    18,208,656x = 1,539,800,202,322,944
  5. Step 5: Solve for x
    x = 1,539,800,202,322,944/18,208,656
  6. Step 6: Final answer
    x = 84,564,187.62

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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.