Home / 7,720,899.20-11,588,721.60-6,600,233.60

Finding the Fourth Proportional to 7,720,899.20, 11,588,721.60 and 6,600,233.60

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Solution

The fourth proportional to 7,720,899.20, 11,588,721.60 and 6,600,233.60 is: 9,906,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720,899.20 : 11,588,721.60 = 6,600,233.60 : x
  2. Step 2: Convert to fraction form
    7,720,899.20/11,588,721.60 = 6,600,233.60/x
  3. Step 3: Cross multiply
    7,720,899.20x = 11,588,721.60 × 6,600,233.60
  4. Step 4: Simplify right side
    7,720,899.20x = 76,488,269,685,365.75
  5. Step 5: Solve for x
    x = 76,488,269,685,365.75/7,720,899.20
  6. Step 6: Final answer
    x = 9,906,653.06

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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.