Home / 2,180,119.80-3,272,123.70-1,280,436.60

Finding the Fourth Proportional to 2,180,119.80, 3,272,123.70 and 1,280,436.60

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Solution

The fourth proportional to 2,180,119.80, 3,272,123.70 and 1,280,436.60 is: 1,921,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,119.80 : 3,272,123.70 = 1,280,436.60 : x
  2. Step 2: Convert to fraction form
    2,180,119.80/3,272,123.70 = 1,280,436.60/x
  3. Step 3: Cross multiply
    2,180,119.80x = 3,272,123.70 × 1,280,436.60
  4. Step 4: Simplify right side
    2,180,119.80x = 4,189,746,945,207.42
  5. Step 5: Solve for x
    x = 4,189,746,945,207.42/2,180,119.80
  6. Step 6: Final answer
    x = 1,921,796.66

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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.