Home / 8,790,421.80-13,185,632.70-5,200,242.60

Finding the Fourth Proportional to 8,790,421.80, 13,185,632.70 and 5,200,242.60

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Solution

The fourth proportional to 8,790,421.80, 13,185,632.70 and 5,200,242.60 is: 7,800,363.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790,421.80 : 13,185,632.70 = 5,200,242.60 : x
  2. Step 2: Convert to fraction form
    8,790,421.80/13,185,632.70 = 5,200,242.60/x
  3. Step 3: Cross multiply
    8,790,421.80x = 13,185,632.70 × 5,200,242.60
  4. Step 4: Simplify right side
    8,790,421.80x = 68,568,488,874,493.01
  5. Step 5: Solve for x
    x = 68,568,488,874,493.01/8,790,421.80
  6. Step 6: Final answer
    x = 7,800,363.90

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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.