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Finding the Third Proportional to 8,681,520 and 12,771,384

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Solution

The third proportional to 8,681,520 and 12,771,384 is: 18,787,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681,520 : 12,771,384 = 12,771,384 : x
  2. Step 2: Convert to fraction form
    8,681,520/12,771,384 = 12,771,384/x
  3. Step 3: Cross multiply
    8,681,520x = 12,771,384 × 12,771,384
  4. Step 4: Simplify right side
    8,681,520x = 163,108,249,275,456
  5. Step 5: Solve for x
    x = 163,108,249,275,456/8,681,520
  6. Step 6: Final answer
    x = 18,787,982.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.