Home / 2,568,015.20-3,852,022.80-2,155,138.40

Finding the Fourth Proportional to 2,568,015.20, 3,852,022.80 and 2,155,138.40

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Solution

The fourth proportional to 2,568,015.20, 3,852,022.80 and 2,155,138.40 is: 3,232,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568,015.20 : 3,852,022.80 = 2,155,138.40 : x
  2. Step 2: Convert to fraction form
    2,568,015.20/3,852,022.80 = 2,155,138.40/x
  3. Step 3: Cross multiply
    2,568,015.20x = 3,852,022.80 × 2,155,138.40
  4. Step 4: Simplify right side
    2,568,015.20x = 8,301,642,253,955.52
  5. Step 5: Solve for x
    x = 8,301,642,253,955.52/2,568,015.20
  6. Step 6: Final answer
    x = 3,232,707.60

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Similar ratio
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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.