Home / 3,581,721.60-5,372,582.40-3,189,811.20

Finding the Fourth Proportional to 3,581,721.60, 5,372,582.40 and 3,189,811.20

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Solution

The fourth proportional to 3,581,721.60, 5,372,582.40 and 3,189,811.20 is: 4,784,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581,721.60 : 5,372,582.40 = 3,189,811.20 : x
  2. Step 2: Convert to fraction form
    3,581,721.60/5,372,582.40 = 3,189,811.20/x
  3. Step 3: Cross multiply
    3,581,721.60x = 5,372,582.40 × 3,189,811.20
  4. Step 4: Simplify right side
    3,581,721.60x = 17,137,523,512,442.88
  5. Step 5: Solve for x
    x = 17,137,523,512,442.88/3,581,721.60
  6. Step 6: Final answer
    x = 4,784,716.80

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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.