Home / 13,505,542-18,639,422.86-7,702,993.60

Finding the Fourth Proportional to 13,505,542, 18,639,422.86 and 7,702,993.60

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Solution

The fourth proportional to 13,505,542, 18,639,422.86 and 7,702,993.60 is: 10,631,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,542 : 18,639,422.86 = 7,702,993.60 : x
  2. Step 2: Convert to fraction form
    13,505,542/18,639,422.86 = 7,702,993.60/x
  3. Step 3: Cross multiply
    13,505,542x = 18,639,422.86 × 7,702,993.60
  4. Step 4: Simplify right side
    13,505,542x = 143,579,354,998,273.69
  5. Step 5: Solve for x
    x = 143,579,354,998,273.69/13,505,542
  6. Step 6: Final answer
    x = 10,631,143.50

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1.5x scale

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.