Home / 2,178,790.80-3,268,186.20-2,080,813.20

Finding the Fourth Proportional to 2,178,790.80, 3,268,186.20 and 2,080,813.20

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Solution

The fourth proportional to 2,178,790.80, 3,268,186.20 and 2,080,813.20 is: 3,121,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,790.80 : 3,268,186.20 = 2,080,813.20 : x
  2. Step 2: Convert to fraction form
    2,178,790.80/3,268,186.20 = 2,080,813.20/x
  3. Step 3: Cross multiply
    2,178,790.80x = 3,268,186.20 × 2,080,813.20
  4. Step 4: Simplify right side
    2,178,790.80x = 6,800,484,985,017.84
  5. Step 5: Solve for x
    x = 6,800,484,985,017.84/2,178,790.80
  6. Step 6: Final answer
    x = 3,121,219.80

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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.