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Finding the Third Proportional to 18,918,500 and 40,974,820

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Solution

The third proportional to 18,918,500 and 40,974,820 is: 88,745,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918,500 : 40,974,820 = 40,974,820 : x
  2. Step 2: Convert to fraction form
    18,918,500/40,974,820 = 40,974,820/x
  3. Step 3: Cross multiply
    18,918,500x = 40,974,820 × 40,974,820
  4. Step 4: Simplify right side
    18,918,500x = 1,678,935,874,032,400
  5. Step 5: Solve for x
    x = 1,678,935,874,032,400/18,918,500
  6. Step 6: Final answer
    x = 88,745,718.43

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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.