Home / 13,585,815.28-20,378,719.20-9,313,029.64

Finding the Fourth Proportional to 13,585,815.28, 20,378,719.20 and 9,313,029.64

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Solution

The fourth proportional to 13,585,815.28, 20,378,719.20 and 9,313,029.64 is: 13,969,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585,815.28 : 20,378,719.20 = 9,313,029.64 : x
  2. Step 2: Convert to fraction form
    13,585,815.28/20,378,719.20 = 9,313,029.64/x
  3. Step 3: Cross multiply
    13,585,815.28x = 20,378,719.20 × 9,313,029.64
  4. Step 4: Simplify right side
    13,585,815.28x = 189,787,615,934,837.09
  5. Step 5: Solve for x
    x = 189,787,615,934,837.09/13,585,815.28
  6. Step 6: Final answer
    x = 13,969,541.91

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1.5x scale

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.