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Finding the Third Proportional to 3,787,890 and 5,686,209

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Solution

The third proportional to 3,787,890 and 5,686,209 is: 8,535,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787,890 : 5,686,209 = 5,686,209 : x
  2. Step 2: Convert to fraction form
    3,787,890/5,686,209 = 5,686,209/x
  3. Step 3: Cross multiply
    3,787,890x = 5,686,209 × 5,686,209
  4. Step 4: Simplify right side
    3,787,890x = 32,332,972,791,681
  5. Step 5: Solve for x
    x = 32,332,972,791,681/3,787,890
  6. Step 6: Final answer
    x = 8,535,879.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.