Home / 20,214,571.40-30,321,857.10-9,452,891.15

Finding the Fourth Proportional to 20,214,571.40, 30,321,857.10 and 9,452,891.15

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Solution

The fourth proportional to 20,214,571.40, 30,321,857.10 and 9,452,891.15 is: 14,179,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214,571.40 : 30,321,857.10 = 9,452,891.15 : x
  2. Step 2: Convert to fraction form
    20,214,571.40/30,321,857.10 = 9,452,891.15/x
  3. Step 3: Cross multiply
    20,214,571.40x = 30,321,857.10 × 9,452,891.15
  4. Step 4: Simplify right side
    20,214,571.40x = 286,629,214,632,154.69
  5. Step 5: Solve for x
    x = 286,629,214,632,154.69/20,214,571.40
  6. Step 6: Final answer
    x = 14,179,336.73

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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.