Home / 87,336,015.40-131,004,023.10-85,992,322.60

Finding the Fourth Proportional to 87,336,015.40, 131,004,023.10 and 85,992,322.60

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Solution

The fourth proportional to 87,336,015.40, 131,004,023.10 and 85,992,322.60 is: 128,988,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,336,015.40 : 131,004,023.10 = 85,992,322.60 : x
  2. Step 2: Convert to fraction form
    87,336,015.40/131,004,023.10 = 85,992,322.60/x
  3. Step 3: Cross multiply
    87,336,015.40x = 131,004,023.10 × 85,992,322.60
  4. Step 4: Simplify right side
    87,336,015.40x = 11,265,340,216,313,050
  5. Step 5: Solve for x
    x = 11,265,340,216,313,050/87,336,015.40
  6. Step 6: Final answer
    x = 128,988,483.90

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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.