Home / 2,138,014.80-3,200,801.40-1,296,133.20

Finding the Fourth Proportional to 2,138,014.80, 3,200,801.40 and 1,296,133.20

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Solution

The fourth proportional to 2,138,014.80, 3,200,801.40 and 1,296,133.20 is: 1,940,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,014.80 : 3,200,801.40 = 1,296,133.20 : x
  2. Step 2: Convert to fraction form
    2,138,014.80/3,200,801.40 = 1,296,133.20/x
  3. Step 3: Cross multiply
    2,138,014.80x = 3,200,801.40 × 1,296,133.20
  4. Step 4: Simplify right side
    2,138,014.80x = 4,148,664,961,146.48
  5. Step 5: Solve for x
    x = 4,148,664,961,146.48/2,138,014.80
  6. Step 6: Final answer
    x = 1,940,428.55

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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.