Home / 4,684,115.80-7,020,924.90-1,987,982.20

Finding the Fourth Proportional to 4,684,115.80, 7,020,924.90 and 1,987,982.20

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Solution

The fourth proportional to 4,684,115.80, 7,020,924.90 and 1,987,982.20 is: 2,979,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684,115.80 : 7,020,924.90 = 1,987,982.20 : x
  2. Step 2: Convert to fraction form
    4,684,115.80/7,020,924.90 = 1,987,982.20/x
  3. Step 3: Cross multiply
    4,684,115.80x = 7,020,924.90 × 1,987,982.20
  4. Step 4: Simplify right side
    4,684,115.80x = 13,957,473,728,736.78
  5. Step 5: Solve for x
    x = 13,957,473,728,736.78/4,684,115.80
  6. Step 6: Final answer
    x = 2,979,745.66

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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.