Home / 18,821,330.80-28,231,996.20-17,085,727.60

Finding the Fourth Proportional to 18,821,330.80, 28,231,996.20 and 17,085,727.60

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Solution

The fourth proportional to 18,821,330.80, 28,231,996.20 and 17,085,727.60 is: 25,628,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,330.80 : 28,231,996.20 = 17,085,727.60 : x
  2. Step 2: Convert to fraction form
    18,821,330.80/28,231,996.20 = 17,085,727.60/x
  3. Step 3: Cross multiply
    18,821,330.80x = 28,231,996.20 × 17,085,727.60
  4. Step 4: Simplify right side
    18,821,330.80x = 482,364,196,677,435.12
  5. Step 5: Solve for x
    x = 482,364,196,677,435.12/18,821,330.80
  6. Step 6: Final answer
    x = 25,628,591.40

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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.