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Finding the Third Proportional to 18,849,837.38 and 40,676,934.38

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Solution

The third proportional to 18,849,837.38 and 40,676,934.38 is: 87,778,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849,837.38 : 40,676,934.38 = 40,676,934.38 : x
  2. Step 2: Convert to fraction form
    18,849,837.38/40,676,934.38 = 40,676,934.38/x
  3. Step 3: Cross multiply
    18,849,837.38x = 40,676,934.38 × 40,676,934.38
  4. Step 4: Simplify right side
    18,849,837.38x = 1,654,612,990,148,056.75
  5. Step 5: Solve for x
    x = 1,654,612,990,148,056.75/18,849,837.38
  6. Step 6: Final answer
    x = 87,778,634.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.