Home / 12,568,028.40-18,852,042.60-7,785,059.40

Finding the Fourth Proportional to 12,568,028.40, 18,852,042.60 and 7,785,059.40

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Solution

The fourth proportional to 12,568,028.40, 18,852,042.60 and 7,785,059.40 is: 11,677,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568,028.40 : 18,852,042.60 = 7,785,059.40 : x
  2. Step 2: Convert to fraction form
    12,568,028.40/18,852,042.60 = 7,785,059.40/x
  3. Step 3: Cross multiply
    12,568,028.40x = 18,852,042.60 × 7,785,059.40
  4. Step 4: Simplify right side
    12,568,028.40x = 146,764,271,452,330.47
  5. Step 5: Solve for x
    x = 146,764,271,452,330.47/12,568,028.40
  6. Step 6: Final answer
    x = 11,677,589.10

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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.