Home / 20,207,523.20-30,311,284.80-18,648,629.60

Finding the Fourth Proportional to 20,207,523.20, 30,311,284.80 and 18,648,629.60

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Solution

The fourth proportional to 20,207,523.20, 30,311,284.80 and 18,648,629.60 is: 27,972,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207,523.20 : 30,311,284.80 = 18,648,629.60 : x
  2. Step 2: Convert to fraction form
    20,207,523.20/30,311,284.80 = 18,648,629.60/x
  3. Step 3: Cross multiply
    20,207,523.20x = 30,311,284.80 × 18,648,629.60
  4. Step 4: Simplify right side
    20,207,523.20x = 565,263,922,935,310.12
  5. Step 5: Solve for x
    x = 565,263,922,935,310.12/20,207,523.20
  6. Step 6: Final answer
    x = 27,972,944.40

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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.