Home / 2,154,961.20-3,238,662.60-2,117,636.40

Finding the Fourth Proportional to 2,154,961.20, 3,238,662.60 and 2,117,636.40

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Solution

The fourth proportional to 2,154,961.20, 3,238,662.60 and 2,117,636.40 is: 3,182,567.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,961.20 : 3,238,662.60 = 2,117,636.40 : x
  2. Step 2: Convert to fraction form
    2,154,961.20/3,238,662.60 = 2,117,636.40/x
  3. Step 3: Cross multiply
    2,154,961.20x = 3,238,662.60 × 2,117,636.40
  4. Step 4: Simplify right side
    2,154,961.20x = 6,858,309,809,078.64
  5. Step 5: Solve for x
    x = 6,858,309,809,078.64/2,154,961.20
  6. Step 6: Final answer
    x = 3,182,567.65

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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.