Home / 11,109,645.60-16,631,991.45-7,920,999.60

Finding the Fourth Proportional to 11,109,645.60, 16,631,991.45 and 7,920,999.60

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Solution

The fourth proportional to 11,109,645.60, 16,631,991.45 and 7,920,999.60 is: 11,858,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109,645.60 : 16,631,991.45 = 7,920,999.60 : x
  2. Step 2: Convert to fraction form
    11,109,645.60/16,631,991.45 = 7,920,999.60/x
  3. Step 3: Cross multiply
    11,109,645.60x = 16,631,991.45 × 7,920,999.60
  4. Step 4: Simplify right side
    11,109,645.60x = 131,741,997,622,653.41
  5. Step 5: Solve for x
    x = 131,741,997,622,653.41/11,109,645.60
  6. Step 6: Final answer
    x = 11,858,343.85

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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.