Home / 7,120,174.59-9,825,887.79-3,856,989.15

Finding the Fourth Proportional to 7,120,174.59, 9,825,887.79 and 3,856,989.15

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Solution

The fourth proportional to 7,120,174.59, 9,825,887.79 and 3,856,989.15 is: 5,322,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,174.59 : 9,825,887.79 = 3,856,989.15 : x
  2. Step 2: Convert to fraction form
    7,120,174.59/9,825,887.79 = 3,856,989.15/x
  3. Step 3: Cross multiply
    7,120,174.59x = 9,825,887.79 × 3,856,989.15
  4. Step 4: Simplify right side
    7,120,174.59x = 37,898,342,595,147.48
  5. Step 5: Solve for x
    x = 37,898,342,595,147.48/7,120,174.59
  6. Step 6: Final answer
    x = 5,322,670.41

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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.