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Finding the Third Proportional to 8,966,820 and 18,571,720

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Solution

The third proportional to 8,966,820 and 18,571,720 is: 38,465,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966,820 : 18,571,720 = 18,571,720 : x
  2. Step 2: Convert to fraction form
    8,966,820/18,571,720 = 18,571,720/x
  3. Step 3: Cross multiply
    8,966,820x = 18,571,720 × 18,571,720
  4. Step 4: Simplify right side
    8,966,820x = 344,908,783,758,400
  5. Step 5: Solve for x
    x = 344,908,783,758,400/8,966,820
  6. Step 6: Final answer
    x = 38,465,005.85

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.