Home / 28,471,840.80-42,707,761.20-7,196,704.80

Finding the Fourth Proportional to 28,471,840.80, 42,707,761.20 and 7,196,704.80

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Solution

The fourth proportional to 28,471,840.80, 42,707,761.20 and 7,196,704.80 is: 10,795,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,840.80 : 42,707,761.20 = 7,196,704.80 : x
  2. Step 2: Convert to fraction form
    28,471,840.80/42,707,761.20 = 7,196,704.80/x
  3. Step 3: Cross multiply
    28,471,840.80x = 42,707,761.20 × 7,196,704.80
  4. Step 4: Simplify right side
    28,471,840.80x = 307,355,150,025,293.75
  5. Step 5: Solve for x
    x = 307,355,150,025,293.75/28,471,840.80
  6. Step 6: Final answer
    x = 10,795,057.20

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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.