Home / 20,770,009.60-28,664,164.80-11,952,163.84

Finding the Fourth Proportional to 20,770,009.60, 28,664,164.80 and 11,952,163.84

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Solution

The fourth proportional to 20,770,009.60, 28,664,164.80 and 11,952,163.84 is: 16,494,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770,009.60 : 28,664,164.80 = 11,952,163.84 : x
  2. Step 2: Convert to fraction form
    20,770,009.60/28,664,164.80 = 11,952,163.84/x
  3. Step 3: Cross multiply
    20,770,009.60x = 28,664,164.80 × 11,952,163.84
  4. Step 4: Simplify right side
    20,770,009.60x = 342,598,794,026,360.81
  5. Step 5: Solve for x
    x = 342,598,794,026,360.81/20,770,009.60
  6. Step 6: Final answer
    x = 16,494,878.94

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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.