Home / 18,118,380.26-25,002,615.12-9,858,476.54

Finding the Fourth Proportional to 18,118,380.26, 25,002,615.12 and 9,858,476.54

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Solution

The fourth proportional to 18,118,380.26, 25,002,615.12 and 9,858,476.54 is: 13,604,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118,380.26 : 25,002,615.12 = 9,858,476.54 : x
  2. Step 2: Convert to fraction form
    18,118,380.26/25,002,615.12 = 9,858,476.54/x
  3. Step 3: Cross multiply
    18,118,380.26x = 25,002,615.12 × 9,858,476.54
  4. Step 4: Simplify right side
    18,118,380.26x = 246,487,694,599,169.28
  5. Step 5: Solve for x
    x = 246,487,694,599,169.28/18,118,380.26
  6. Step 6: Final answer
    x = 13,604,289.74

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1.5x scale

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.