Home / 2,199,321.20-3,298,981.80-1,986,744.80

Finding the Fourth Proportional to 2,199,321.20, 3,298,981.80 and 1,986,744.80

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Solution

The fourth proportional to 2,199,321.20, 3,298,981.80 and 1,986,744.80 is: 2,980,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199,321.20 : 3,298,981.80 = 1,986,744.80 : x
  2. Step 2: Convert to fraction form
    2,199,321.20/3,298,981.80 = 1,986,744.80/x
  3. Step 3: Cross multiply
    2,199,321.20x = 3,298,981.80 × 1,986,744.80
  4. Step 4: Simplify right side
    2,199,321.20x = 6,554,234,936,444.64
  5. Step 5: Solve for x
    x = 6,554,234,936,444.64/2,199,321.20
  6. Step 6: Final answer
    x = 2,980,117.20

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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.