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Finding the Third Proportional to 18,403,764 and 39,874,654

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Solution

The third proportional to 18,403,764 and 39,874,654 is: 86,394,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,764 : 39,874,654 = 39,874,654 : x
  2. Step 2: Convert to fraction form
    18,403,764/39,874,654 = 39,874,654/x
  3. Step 3: Cross multiply
    18,403,764x = 39,874,654 × 39,874,654
  4. Step 4: Simplify right side
    18,403,764x = 1,589,988,031,619,716
  5. Step 5: Solve for x
    x = 1,589,988,031,619,716/18,403,764
  6. Step 6: Final answer
    x = 86,394,719.67

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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.