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Finding the Third Proportional to 3,307,989.38 and 7,122,831.19

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Solution

The third proportional to 3,307,989.38 and 7,122,831.19 is: 15,337,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307,989.38 : 7,122,831.19 = 7,122,831.19 : x
  2. Step 2: Convert to fraction form
    3,307,989.38/7,122,831.19 = 7,122,831.19/x
  3. Step 3: Cross multiply
    3,307,989.38x = 7,122,831.19 × 7,122,831.19
  4. Step 4: Simplify right side
    3,307,989.38x = 50,734,724,125,622.66
  5. Step 5: Solve for x
    x = 50,734,724,125,622.66/3,307,989.38
  6. Step 6: Final answer
    x = 15,337,027.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.