Home / 9,139,911.87-12,591,880.07-6,382,231.31

Finding the Fourth Proportional to 9,139,911.87, 12,591,880.07 and 6,382,231.31

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Solution

The fourth proportional to 9,139,911.87, 12,591,880.07 and 6,382,231.31 is: 8,792,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,911.87 : 12,591,880.07 = 6,382,231.31 : x
  2. Step 2: Convert to fraction form
    9,139,911.87/12,591,880.07 = 6,382,231.31/x
  3. Step 3: Cross multiply
    9,139,911.87x = 12,591,880.07 × 6,382,231.31
  4. Step 4: Simplify right side
    9,139,911.87x = 80,364,291,139,648.42
  5. Step 5: Solve for x
    x = 80,364,291,139,648.42/9,139,911.87
  6. Step 6: Final answer
    x = 8,792,676.81

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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.