Home / 5,479,936.80-8,219,905.20-2,488,120.80

Finding the Fourth Proportional to 5,479,936.80, 8,219,905.20 and 2,488,120.80

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Solution

The fourth proportional to 5,479,936.80, 8,219,905.20 and 2,488,120.80 is: 3,732,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479,936.80 : 8,219,905.20 = 2,488,120.80 : x
  2. Step 2: Convert to fraction form
    5,479,936.80/8,219,905.20 = 2,488,120.80/x
  3. Step 3: Cross multiply
    5,479,936.80x = 8,219,905.20 × 2,488,120.80
  4. Step 4: Simplify right side
    5,479,936.80x = 20,452,117,102,148.16
  5. Step 5: Solve for x
    x = 20,452,117,102,148.16/5,479,936.80
  6. Step 6: Final answer
    x = 3,732,181.20

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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.