Home / 31,373,815.06-43,289,148.60-18,315,147.16

Finding the Fourth Proportional to 31,373,815.06, 43,289,148.60 and 18,315,147.16

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Solution

The fourth proportional to 31,373,815.06, 43,289,148.60 and 18,315,147.16 is: 25,270,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373,815.06 : 43,289,148.60 = 18,315,147.16 : x
  2. Step 2: Convert to fraction form
    31,373,815.06/43,289,148.60 = 18,315,147.16/x
  3. Step 3: Cross multiply
    31,373,815.06x = 43,289,148.60 × 18,315,147.16
  4. Step 4: Simplify right side
    31,373,815.06x = 792,847,127,040,108
  5. Step 5: Solve for x
    x = 792,847,127,040,108/31,373,815.06
  6. Step 6: Final answer
    x = 25,270,982.36

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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.