Home / 8,285,138.56-12,428,150.64-2,605,805.76

Finding the Fourth Proportional to 8,285,138.56, 12,428,150.64 and 2,605,805.76

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Solution

The fourth proportional to 8,285,138.56, 12,428,150.64 and 2,605,805.76 is: 3,908,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285,138.56 : 12,428,150.64 = 2,605,805.76 : x
  2. Step 2: Convert to fraction form
    8,285,138.56/12,428,150.64 = 2,605,805.76/x
  3. Step 3: Cross multiply
    8,285,138.56x = 12,428,150.64 × 2,605,805.76
  4. Step 4: Simplify right side
    8,285,138.56x = 32,385,346,523,859.68
  5. Step 5: Solve for x
    x = 32,385,346,523,859.68/8,285,138.56
  6. Step 6: Final answer
    x = 3,908,847.91

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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.