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Finding the Third Proportional to 18,612,774 and 39,371,670

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Solution

The third proportional to 18,612,774 and 39,371,670 is: 83,283,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612,774 : 39,371,670 = 39,371,670 : x
  2. Step 2: Convert to fraction form
    18,612,774/39,371,670 = 39,371,670/x
  3. Step 3: Cross multiply
    18,612,774x = 39,371,670 × 39,371,670
  4. Step 4: Simplify right side
    18,612,774x = 1,550,128,398,588,900
  5. Step 5: Solve for x
    x = 1,550,128,398,588,900/18,612,774
  6. Step 6: Final answer
    x = 83,283,039.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.