Home / 20,505,879.20-30,758,818.80-20,187,014.60

Finding the Fourth Proportional to 20,505,879.20, 30,758,818.80 and 20,187,014.60

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Solution

The fourth proportional to 20,505,879.20, 30,758,818.80 and 20,187,014.60 is: 30,280,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,879.20 : 30,758,818.80 = 20,187,014.60 : x
  2. Step 2: Convert to fraction form
    20,505,879.20/30,758,818.80 = 20,187,014.60/x
  3. Step 3: Cross multiply
    20,505,879.20x = 30,758,818.80 × 20,187,014.60
  4. Step 4: Simplify right side
    20,505,879.20x = 620,928,724,194,354.50
  5. Step 5: Solve for x
    x = 620,928,724,194,354.50/20,505,879.20
  6. Step 6: Final answer
    x = 30,280,521.90

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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.