Home / 7,680,557.45-11,520,794.52-3,131,588.54

Finding the Fourth Proportional to 7,680,557.45, 11,520,794.52 and 3,131,588.54

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Solution

The fourth proportional to 7,680,557.45, 11,520,794.52 and 3,131,588.54 is: 4,697,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,557.45 : 11,520,794.52 = 3,131,588.54 : x
  2. Step 2: Convert to fraction form
    7,680,557.45/11,520,794.52 = 3,131,588.54/x
  3. Step 3: Cross multiply
    7,680,557.45x = 11,520,794.52 × 3,131,588.54
  4. Step 4: Simplify right side
    7,680,557.45x = 36,078,388,032,922.83
  5. Step 5: Solve for x
    x = 36,078,388,032,922.83/7,680,557.45
  6. Step 6: Final answer
    x = 4,697,365.82

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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.