Home / 20,022,022.80-30,033,034.20-10,920,603.60

Finding the Fourth Proportional to 20,022,022.80, 30,033,034.20 and 10,920,603.60

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Solution

The fourth proportional to 20,022,022.80, 30,033,034.20 and 10,920,603.60 is: 16,380,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022,022.80 : 30,033,034.20 = 10,920,603.60 : x
  2. Step 2: Convert to fraction form
    20,022,022.80/30,033,034.20 = 10,920,603.60/x
  3. Step 3: Cross multiply
    20,022,022.80x = 30,033,034.20 × 10,920,603.60
  4. Step 4: Simplify right side
    20,022,022.80x = 327,978,861,403,443.12
  5. Step 5: Solve for x
    x = 327,978,861,403,443.12/20,022,022.80
  6. Step 6: Final answer
    x = 16,380,905.40

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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.