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Finding the Third Proportional to 8,731,385 and 18,367,670

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Solution

The third proportional to 8,731,385 and 18,367,670 is: 38,638,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731,385 : 18,367,670 = 18,367,670 : x
  2. Step 2: Convert to fraction form
    8,731,385/18,367,670 = 18,367,670/x
  3. Step 3: Cross multiply
    8,731,385x = 18,367,670 × 18,367,670
  4. Step 4: Simplify right side
    8,731,385x = 337,371,301,228,900
  5. Step 5: Solve for x
    x = 337,371,301,228,900/8,731,385
  6. Step 6: Final answer
    x = 38,638,921.69

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These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.