Home / 12,400,477.80-18,601,235.10-6,640,794.60

Finding the Fourth Proportional to 12,400,477.80, 18,601,235.10 and 6,640,794.60

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Solution

The fourth proportional to 12,400,477.80, 18,601,235.10 and 6,640,794.60 is: 9,961,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400,477.80 : 18,601,235.10 = 6,640,794.60 : x
  2. Step 2: Convert to fraction form
    12,400,477.80/18,601,235.10 = 6,640,794.60/x
  3. Step 3: Cross multiply
    12,400,477.80x = 18,601,235.10 × 6,640,794.60
  4. Step 4: Simplify right side
    12,400,477.80x = 123,526,981,605,410.47
  5. Step 5: Solve for x
    x = 123,526,981,605,410.47/12,400,477.80
  6. Step 6: Final answer
    x = 9,961,469.52

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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.