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Finding the Third Proportional to 18,586,291.64 and 38,699,997.54

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Solution

The third proportional to 18,586,291.64 and 38,699,997.54 is: 80,580,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,291.64 : 38,699,997.54 = 38,699,997.54 : x
  2. Step 2: Convert to fraction form
    18,586,291.64/38,699,997.54 = 38,699,997.54/x
  3. Step 3: Cross multiply
    18,586,291.64x = 38,699,997.54 × 38,699,997.54
  4. Step 4: Simplify right side
    18,586,291.64x = 1,497,689,809,523,405
  5. Step 5: Solve for x
    x = 1,497,689,809,523,405/18,586,291.64
  6. Step 6: Final answer
    x = 80,580,345.91

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.