Home / 2,688,085.20-4,027,462.20-2,520,123.60

Finding the Fourth Proportional to 2,688,085.20, 4,027,462.20 and 2,520,123.60

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Solution

The fourth proportional to 2,688,085.20, 4,027,462.20 and 2,520,123.60 is: 3,775,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,085.20 : 4,027,462.20 = 2,520,123.60 : x
  2. Step 2: Convert to fraction form
    2,688,085.20/4,027,462.20 = 2,520,123.60/x
  3. Step 3: Cross multiply
    2,688,085.20x = 4,027,462.20 × 2,520,123.60
  4. Step 4: Simplify right side
    2,688,085.20x = 10,149,702,538,327.92
  5. Step 5: Solve for x
    x = 10,149,702,538,327.92/2,688,085.20
  6. Step 6: Final answer
    x = 3,775,811.32

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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.