Home / 7,643,963.70-11,465,945.55-7,059,378.60

Finding the Fourth Proportional to 7,643,963.70, 11,465,945.55 and 7,059,378.60

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Solution

The fourth proportional to 7,643,963.70, 11,465,945.55 and 7,059,378.60 is: 10,589,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643,963.70 : 11,465,945.55 = 7,059,378.60 : x
  2. Step 2: Convert to fraction form
    7,643,963.70/11,465,945.55 = 7,059,378.60/x
  3. Step 3: Cross multiply
    7,643,963.70x = 11,465,945.55 × 7,059,378.60
  4. Step 4: Simplify right side
    7,643,963.70x = 80,942,450,644,435.23
  5. Step 5: Solve for x
    x = 80,942,450,644,435.23/7,643,963.70
  6. Step 6: Final answer
    x = 10,589,067.90

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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.