Home / 31,373,977.44-43,289,372.88-18,315,310.08

Finding the Fourth Proportional to 31,373,977.44, 43,289,372.88 and 18,315,310.08

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Solution

The fourth proportional to 31,373,977.44, 43,289,372.88 and 18,315,310.08 is: 25,271,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373,977.44 : 43,289,372.88 = 18,315,310.08 : x
  2. Step 2: Convert to fraction form
    31,373,977.44/43,289,372.88 = 18,315,310.08/x
  3. Step 3: Cross multiply
    31,373,977.44x = 43,289,372.88 × 18,315,310.08
  4. Step 4: Simplify right side
    31,373,977.44x = 792,858,287,465,942.62
  5. Step 5: Solve for x
    x = 792,858,287,465,942.62/31,373,977.44
  6. Step 6: Final answer
    x = 25,271,207.29

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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.