Home / 13,585,813.28-20,378,716.20-9,313,027.64

Finding the Fourth Proportional to 13,585,813.28, 20,378,716.20 and 9,313,027.64

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Solution

The fourth proportional to 13,585,813.28, 20,378,716.20 and 9,313,027.64 is: 13,969,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585,813.28 : 20,378,716.20 = 9,313,027.64 : x
  2. Step 2: Convert to fraction form
    13,585,813.28/20,378,716.20 = 9,313,027.64/x
  3. Step 3: Cross multiply
    13,585,813.28x = 20,378,716.20 × 9,313,027.64
  4. Step 4: Simplify right side
    13,585,813.28x = 189,787,547,238,315.78
  5. Step 5: Solve for x
    x = 189,787,547,238,315.78/13,585,813.28
  6. Step 6: Final answer
    x = 13,969,538.91

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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.