Home / 2,080,405.20-3,120,607.80-1,955,989.20

Finding the Fourth Proportional to 2,080,405.20, 3,120,607.80 and 1,955,989.20

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Solution

The fourth proportional to 2,080,405.20, 3,120,607.80 and 1,955,989.20 is: 2,933,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,405.20 : 3,120,607.80 = 1,955,989.20 : x
  2. Step 2: Convert to fraction form
    2,080,405.20/3,120,607.80 = 1,955,989.20/x
  3. Step 3: Cross multiply
    2,080,405.20x = 3,120,607.80 × 1,955,989.20
  4. Step 4: Simplify right side
    2,080,405.20x = 6,103,875,154,235.76
  5. Step 5: Solve for x
    x = 6,103,875,154,235.76/2,080,405.20
  6. Step 6: Final answer
    x = 2,933,983.80

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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.