Home / 7,422,431.40-11,132,091.90-3,638,629.80

Finding the Fourth Proportional to 7,422,431.40, 11,132,091.90 and 3,638,629.80

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Solution

The fourth proportional to 7,422,431.40, 11,132,091.90 and 3,638,629.80 is: 5,457,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422,431.40 : 11,132,091.90 = 3,638,629.80 : x
  2. Step 2: Convert to fraction form
    7,422,431.40/11,132,091.90 = 3,638,629.80/x
  3. Step 3: Cross multiply
    7,422,431.40x = 11,132,091.90 × 3,638,629.80
  4. Step 4: Simplify right side
    7,422,431.40x = 40,505,561,323,678.62
  5. Step 5: Solve for x
    x = 40,505,561,323,678.62/7,422,431.40
  6. Step 6: Final answer
    x = 5,457,182.31

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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.