Home / 28,357,786.80-42,536,680.20-13,987,738.80

Finding the Fourth Proportional to 28,357,786.80, 42,536,680.20 and 13,987,738.80

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Solution

The fourth proportional to 28,357,786.80, 42,536,680.20 and 13,987,738.80 is: 20,981,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357,786.80 : 42,536,680.20 = 13,987,738.80 : x
  2. Step 2: Convert to fraction form
    28,357,786.80/42,536,680.20 = 13,987,738.80/x
  3. Step 3: Cross multiply
    28,357,786.80x = 42,536,680.20 × 13,987,738.80
  4. Step 4: Simplify right side
    28,357,786.80x = 594,991,972,056,731.88
  5. Step 5: Solve for x
    x = 594,991,972,056,731.88/28,357,786.80
  6. Step 6: Final answer
    x = 20,981,608.20

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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.