Home / 8,790,422.80-13,185,634.20-5,200,243.60

Finding the Fourth Proportional to 8,790,422.80, 13,185,634.20 and 5,200,243.60

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Solution

The fourth proportional to 8,790,422.80, 13,185,634.20 and 5,200,243.60 is: 7,800,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790,422.80 : 13,185,634.20 = 5,200,243.60 : x
  2. Step 2: Convert to fraction form
    8,790,422.80/13,185,634.20 = 5,200,243.60/x
  3. Step 3: Cross multiply
    8,790,422.80x = 13,185,634.20 × 5,200,243.60
  4. Step 4: Simplify right side
    8,790,422.80x = 68,568,509,860,491.11
  5. Step 5: Solve for x
    x = 68,568,509,860,491.11/8,790,422.80
  6. Step 6: Final answer
    x = 7,800,365.40

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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.