Home / 31,373,972.94-43,289,366.67-18,315,305.58

Finding the Fourth Proportional to 31,373,972.94, 43,289,366.67 and 18,315,305.58

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Solution

The fourth proportional to 31,373,972.94, 43,289,366.67 and 18,315,305.58 is: 25,271,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373,972.94 : 43,289,366.67 = 18,315,305.58 : x
  2. Step 2: Convert to fraction form
    31,373,972.94/43,289,366.67 = 18,315,305.58/x
  3. Step 3: Cross multiply
    31,373,972.94x = 43,289,366.67 × 18,315,305.58
  4. Step 4: Simplify right side
    31,373,972.94x = 792,857,978,925,717
  5. Step 5: Solve for x
    x = 792,857,978,925,717/31,373,972.94
  6. Step 6: Final answer
    x = 25,271,201.08

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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.