Home / 8,317,330.20-12,474,828.90-2,638,128.60

Finding the Fourth Proportional to 8,317,330.20, 12,474,828.90 and 2,638,128.60

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Solution

The fourth proportional to 8,317,330.20, 12,474,828.90 and 2,638,128.60 is: 3,956,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,330.20 : 12,474,828.90 = 2,638,128.60 : x
  2. Step 2: Convert to fraction form
    8,317,330.20/12,474,828.90 = 2,638,128.60/x
  3. Step 3: Cross multiply
    8,317,330.20x = 12,474,828.90 × 2,638,128.60
  4. Step 4: Simplify right side
    8,317,330.20x = 32,910,202,901,196.54
  5. Step 5: Solve for x
    x = 32,910,202,901,196.54/8,317,330.20
  6. Step 6: Final answer
    x = 3,956,822.94

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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.