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Finding the Third Proportional to 3,921,655.50 and 8,403,183

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Solution

The third proportional to 3,921,655.50 and 8,403,183 is: 18,006,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,655.50 : 8,403,183 = 8,403,183 : x
  2. Step 2: Convert to fraction form
    3,921,655.50/8,403,183 = 8,403,183/x
  3. Step 3: Cross multiply
    3,921,655.50x = 8,403,183 × 8,403,183
  4. Step 4: Simplify right side
    3,921,655.50x = 70,613,484,531,489
  5. Step 5: Solve for x
    x = 70,613,484,531,489/3,921,655.50
  6. Step 6: Final answer
    x = 18,006,039.68

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.