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Finding the Third Proportional to 8,488,731 and 18,412,971

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Solution

The third proportional to 8,488,731 and 18,412,971 is: 39,939,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488,731 : 18,412,971 = 18,412,971 : x
  2. Step 2: Convert to fraction form
    8,488,731/18,412,971 = 18,412,971/x
  3. Step 3: Cross multiply
    8,488,731x = 18,412,971 × 18,412,971
  4. Step 4: Simplify right side
    8,488,731x = 339,037,501,046,841
  5. Step 5: Solve for x
    x = 339,037,501,046,841/8,488,731
  6. Step 6: Final answer
    x = 39,939,715.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.