Home / 13,505,540.00-18,639,420.10-7,702,991.60

Finding the Fourth Proportional to 13,505,540.00, 18,639,420.10 and 7,702,991.60

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Solution

The fourth proportional to 13,505,540.00, 18,639,420.10 and 7,702,991.60 is: 10,631,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,540.00 : 18,639,420.10 = 7,702,991.60 : x
  2. Step 2: Convert to fraction form
    13,505,540.00/18,639,420.10 = 7,702,991.60/x
  3. Step 3: Cross multiply
    13,505,540.00x = 18,639,420.10 × 7,702,991.60
  4. Step 4: Simplify right side
    13,505,540.00x = 143,579,296,346,716.56
  5. Step 5: Solve for x
    x = 143,579,296,346,716.56/13,505,540.00
  6. Step 6: Final answer
    x = 10,631,140.73

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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.