Home / 90,647,388.92-135,970,913.45-28,403,468.64

Finding the Fourth Proportional to 90,647,388.92, 135,970,913.45 and 28,403,468.64

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Solution

The fourth proportional to 90,647,388.92, 135,970,913.45 and 28,403,468.64 is: 42,605,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647,388.92 : 135,970,913.45 = 28,403,468.64 : x
  2. Step 2: Convert to fraction form
    90,647,388.92/135,970,913.45 = 28,403,468.64/x
  3. Step 3: Cross multiply
    90,647,388.92x = 135,970,913.45 × 28,403,468.64
  4. Step 4: Simplify right side
    90,647,388.92x = 3,862,045,576,200,237.50
  5. Step 5: Solve for x
    x = 3,862,045,576,200,237.50/90,647,388.92
  6. Step 6: Final answer
    x = 42,605,149.71

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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.