Home / 3,321,980.55-4,982,970.83-2,120,333.40

Finding the Fourth Proportional to 3,321,980.55, 4,982,970.83 and 2,120,333.40

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Solution

The fourth proportional to 3,321,980.55, 4,982,970.83 and 2,120,333.40 is: 3,180,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,980.55 : 4,982,970.83 = 2,120,333.40 : x
  2. Step 2: Convert to fraction form
    3,321,980.55/4,982,970.83 = 2,120,333.40/x
  3. Step 3: Cross multiply
    3,321,980.55x = 4,982,970.83 × 2,120,333.40
  4. Step 4: Simplify right side
    3,321,980.55x = 10,565,559,471,473.05
  5. Step 5: Solve for x
    x = 10,565,559,471,473.05/3,321,980.55
  6. Step 6: Final answer
    x = 3,180,500.10

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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.