Home / 20,783,363.93-28,680,546.79-11,616,859.61

Finding the Fourth Proportional to 20,783,363.93, 28,680,546.79 and 11,616,859.61

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Solution

The fourth proportional to 20,783,363.93, 28,680,546.79 and 11,616,859.61 is: 16,030,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,363.93 : 28,680,546.79 = 11,616,859.61 : x
  2. Step 2: Convert to fraction form
    20,783,363.93/28,680,546.79 = 11,616,859.61/x
  3. Step 3: Cross multiply
    20,783,363.93x = 28,680,546.79 × 11,616,859.61
  4. Step 4: Simplify right side
    20,783,363.93x = 333,177,885,597,466.12
  5. Step 5: Solve for x
    x = 333,177,885,597,466.12/20,783,363.93
  6. Step 6: Final answer
    x = 16,030,989.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.