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Finding the Third Proportional to 18,957,629 and 40,835,416

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Solution

The third proportional to 18,957,629 and 40,835,416 is: 87,960,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957,629 : 40,835,416 = 40,835,416 : x
  2. Step 2: Convert to fraction form
    18,957,629/40,835,416 = 40,835,416/x
  3. Step 3: Cross multiply
    18,957,629x = 40,835,416 × 40,835,416
  4. Step 4: Simplify right side
    18,957,629x = 1,667,531,199,893,056
  5. Step 5: Solve for x
    x = 1,667,531,199,893,056/18,957,629
  6. Step 6: Final answer
    x = 87,960,957.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.