Home / 20,505,331.20-30,760,761.60-7,046,284.80

Finding the Fourth Proportional to 20,505,331.20, 30,760,761.60 and 7,046,284.80

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Solution

The fourth proportional to 20,505,331.20, 30,760,761.60 and 7,046,284.80 is: 10,570,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,331.20 : 30,760,761.60 = 7,046,284.80 : x
  2. Step 2: Convert to fraction form
    20,505,331.20/30,760,761.60 = 7,046,284.80/x
  3. Step 3: Cross multiply
    20,505,331.20x = 30,760,761.60 × 7,046,284.80
  4. Step 4: Simplify right side
    20,505,331.20x = 216,749,086,898,503.69
  5. Step 5: Solve for x
    x = 216,749,086,898,503.69/20,505,331.20
  6. Step 6: Final answer
    x = 10,570,377.27

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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.