Home / 215,651,301.30-323,147,791.71-128,040,294.60

Finding the Fourth Proportional to 215,651,301.30, 323,147,791.71 and 128,040,294.60

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Solution

The fourth proportional to 215,651,301.30, 323,147,791.71 and 128,040,294.60 is: 191,865,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,651,301.30 : 323,147,791.71 = 128,040,294.60 : x
  2. Step 2: Convert to fraction form
    215,651,301.30/323,147,791.71 = 128,040,294.60/x
  3. Step 3: Cross multiply
    215,651,301.30x = 323,147,791.71 × 128,040,294.60
  4. Step 4: Simplify right side
    215,651,301.30x = 41,375,938,449,887,832
  5. Step 5: Solve for x
    x = 41,375,938,449,887,832/215,651,301.30
  6. Step 6: Final answer
    x = 191,865,007.08

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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.