Home / 17,640,478.30-26,422,138.76-12,507,348.73

Finding the Fourth Proportional to 17,640,478.30, 26,422,138.76 and 12,507,348.73

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Solution

The fourth proportional to 17,640,478.30, 26,422,138.76 and 12,507,348.73 is: 18,733,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640,478.30 : 26,422,138.76 = 12,507,348.73 : x
  2. Step 2: Convert to fraction form
    17,640,478.30/26,422,138.76 = 12,507,348.73/x
  3. Step 3: Cross multiply
    17,640,478.30x = 26,422,138.76 × 12,507,348.73
  4. Step 4: Simplify right side
    17,640,478.30x = 330,470,903,469,122.31
  5. Step 5: Solve for x
    x = 330,470,903,469,122.31/17,640,478.30
  6. Step 6: Final answer
    x = 18,733,670.25

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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.