Home / 2,722,719.70-4,075,222.20-2,120,419.90

Finding the Fourth Proportional to 2,722,719.70, 4,075,222.20 and 2,120,419.90

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Solution

The fourth proportional to 2,722,719.70, 4,075,222.20 and 2,120,419.90 is: 3,173,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722,719.70 : 4,075,222.20 = 2,120,419.90 : x
  2. Step 2: Convert to fraction form
    2,722,719.70/4,075,222.20 = 2,120,419.90/x
  3. Step 3: Cross multiply
    2,722,719.70x = 4,075,222.20 × 2,120,419.90
  4. Step 4: Simplify right side
    2,722,719.70x = 8,641,182,249,801.78
  5. Step 5: Solve for x
    x = 8,641,182,249,801.78/2,722,719.70
  6. Step 6: Final answer
    x = 3,173,731.86

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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.