Home / 9,198,183.78-12,690,683.64-5,329,957.50

Finding the Fourth Proportional to 9,198,183.78, 12,690,683.64 and 5,329,957.50

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Solution

The fourth proportional to 9,198,183.78, 12,690,683.64 and 5,329,957.50 is: 7,353,713.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198,183.78 : 12,690,683.64 = 5,329,957.50 : x
  2. Step 2: Convert to fraction form
    9,198,183.78/12,690,683.64 = 5,329,957.50/x
  3. Step 3: Cross multiply
    9,198,183.78x = 12,690,683.64 × 5,329,957.50
  4. Step 4: Simplify right side
    9,198,183.78x = 67,640,804,447,145.30
  5. Step 5: Solve for x
    x = 67,640,804,447,145.30/9,198,183.78
  6. Step 6: Final answer
    x = 7,353,713.09

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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.