Home / 18,911,380.80-28,325,080.80-15,552,148.80

Finding the Fourth Proportional to 18,911,380.80, 28,325,080.80 and 15,552,148.80

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Solution

The fourth proportional to 18,911,380.80, 28,325,080.80 and 15,552,148.80 is: 23,293,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,380.80 : 28,325,080.80 = 15,552,148.80 : x
  2. Step 2: Convert to fraction form
    18,911,380.80/28,325,080.80 = 15,552,148.80/x
  3. Step 3: Cross multiply
    18,911,380.80x = 28,325,080.80 × 15,552,148.80
  4. Step 4: Simplify right side
    18,911,380.80x = 440,515,871,373,623.06
  5. Step 5: Solve for x
    x = 440,515,871,373,623.06/18,911,380.80
  6. Step 6: Final answer
    x = 23,293,691.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.