Home / 2,080,140.80-3,120,211.20-1,940,172.80

Finding the Fourth Proportional to 2,080,140.80, 3,120,211.20 and 1,940,172.80

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Solution

The fourth proportional to 2,080,140.80, 3,120,211.20 and 1,940,172.80 is: 2,910,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,140.80 : 3,120,211.20 = 1,940,172.80 : x
  2. Step 2: Convert to fraction form
    2,080,140.80/3,120,211.20 = 1,940,172.80/x
  3. Step 3: Cross multiply
    2,080,140.80x = 3,120,211.20 × 1,940,172.80
  4. Step 4: Simplify right side
    2,080,140.80x = 6,053,748,900,495.36
  5. Step 5: Solve for x
    x = 6,053,748,900,495.36/2,080,140.80
  6. Step 6: Final answer
    x = 2,910,259.20

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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.