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Finding the Third Proportional to 18,864,709 and 40,418,942

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Solution

The third proportional to 18,864,709 and 40,418,942 is: 86,600,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864,709 : 40,418,942 = 40,418,942 : x
  2. Step 2: Convert to fraction form
    18,864,709/40,418,942 = 40,418,942/x
  3. Step 3: Cross multiply
    18,864,709x = 40,418,942 × 40,418,942
  4. Step 4: Simplify right side
    18,864,709x = 1,633,690,872,399,364
  5. Step 5: Solve for x
    x = 1,633,690,872,399,364/18,864,709
  6. Step 6: Final answer
    x = 86,600,374.93

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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.