Home / 8,317,403.20-12,477,076.80-2,638,201.60

Finding the Fourth Proportional to 8,317,403.20, 12,477,076.80 and 2,638,201.60

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Solution

The fourth proportional to 8,317,403.20, 12,477,076.80 and 2,638,201.60 is: 3,957,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,403.20 : 12,477,076.80 = 2,638,201.60 : x
  2. Step 2: Convert to fraction form
    8,317,403.20/12,477,076.80 = 2,638,201.60/x
  3. Step 3: Cross multiply
    8,317,403.20x = 12,477,076.80 × 2,638,201.60
  4. Step 4: Simplify right side
    8,317,403.20x = 32,917,043,977,082.88
  5. Step 5: Solve for x
    x = 32,917,043,977,082.88/8,317,403.20
  6. Step 6: Final answer
    x = 3,957,610.71

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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.