Home / 9,987,367.52-13,782,469.20-5,403,588.32

Finding the Fourth Proportional to 9,987,367.52, 13,782,469.20 and 5,403,588.32

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Solution

The fourth proportional to 9,987,367.52, 13,782,469.20 and 5,403,588.32 is: 7,456,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987,367.52 : 13,782,469.20 = 5,403,588.32 : x
  2. Step 2: Convert to fraction form
    9,987,367.52/13,782,469.20 = 5,403,588.32/x
  3. Step 3: Cross multiply
    9,987,367.52x = 13,782,469.20 × 5,403,588.32
  4. Step 4: Simplify right side
    9,987,367.52x = 74,474,789,589,879.75
  5. Step 5: Solve for x
    x = 74,474,789,589,879.75/9,987,367.52
  6. Step 6: Final answer
    x = 7,456,898.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.