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Finding the Third Proportional to 18,664,290 and 38,818,476

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Solution

The third proportional to 18,664,290 and 38,818,476 is: 80,735,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,290 : 38,818,476 = 38,818,476 : x
  2. Step 2: Convert to fraction form
    18,664,290/38,818,476 = 38,818,476/x
  3. Step 3: Cross multiply
    18,664,290x = 38,818,476 × 38,818,476
  4. Step 4: Simplify right side
    18,664,290x = 1,506,874,078,962,576
  5. Step 5: Solve for x
    x = 1,506,874,078,962,576/18,664,290
  6. Step 6: Final answer
    x = 80,735,676.47

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.