Home / 20,783,362.93-28,680,545.41-11,616,858.61

Finding the Fourth Proportional to 20,783,362.93, 28,680,545.41 and 11,616,858.61

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Solution

The fourth proportional to 20,783,362.93, 28,680,545.41 and 11,616,858.61 is: 16,030,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,362.93 : 28,680,545.41 = 11,616,858.61 : x
  2. Step 2: Convert to fraction form
    20,783,362.93/28,680,545.41 = 11,616,858.61/x
  3. Step 3: Cross multiply
    20,783,362.93x = 28,680,545.41 × 11,616,858.61
  4. Step 4: Simplify right side
    20,783,362.93x = 333,177,840,784,910.94
  5. Step 5: Solve for x
    x = 333,177,840,784,910.94/20,783,362.93
  6. Step 6: Final answer
    x = 16,030,987.96

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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.