Home / 2,688,005.20-4,027,342.20-2,520,043.60

Finding the Fourth Proportional to 2,688,005.20, 4,027,342.20 and 2,520,043.60

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Solution

The fourth proportional to 2,688,005.20, 4,027,342.20 and 2,520,043.60 is: 3,775,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,005.20 : 4,027,342.20 = 2,520,043.60 : x
  2. Step 2: Convert to fraction form
    2,688,005.20/4,027,342.20 = 2,520,043.60/x
  3. Step 3: Cross multiply
    2,688,005.20x = 4,027,342.20 × 2,520,043.60
  4. Step 4: Simplify right side
    2,688,005.20x = 10,149,077,936,119.92
  5. Step 5: Solve for x
    x = 10,149,077,936,119.92/2,688,005.20
  6. Step 6: Final answer
    x = 3,775,691.33

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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.