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Finding the Third Proportional to 18,867,942 and 40,426,713

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Solution

The third proportional to 18,867,942 and 40,426,713 is: 86,618,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,942 : 40,426,713 = 40,426,713 : x
  2. Step 2: Convert to fraction form
    18,867,942/40,426,713 = 40,426,713/x
  3. Step 3: Cross multiply
    18,867,942x = 40,426,713 × 40,426,713
  4. Step 4: Simplify right side
    18,867,942x = 1,634,319,123,984,369
  5. Step 5: Solve for x
    x = 1,634,319,123,984,369/18,867,942
  6. Step 6: Final answer
    x = 86,618,833.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.