Home / 2,198,589.40-3,298,661.70-2,120,829.40

Finding the Fourth Proportional to 2,198,589.40, 3,298,661.70 and 2,120,829.40

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Solution

The fourth proportional to 2,198,589.40, 3,298,661.70 and 2,120,829.40 is: 3,181,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,589.40 : 3,298,661.70 = 2,120,829.40 : x
  2. Step 2: Convert to fraction form
    2,198,589.40/3,298,661.70 = 2,120,829.40/x
  3. Step 3: Cross multiply
    2,198,589.40x = 3,298,661.70 × 2,120,829.40
  4. Step 4: Simplify right side
    2,198,589.40x = 6,995,898,714,013.98
  5. Step 5: Solve for x
    x = 6,995,898,714,013.98/2,198,589.40
  6. Step 6: Final answer
    x = 3,181,994.20

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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.