Home / 13,480,830.45-20,219,252.49-4,959,174.06

Finding the Fourth Proportional to 13,480,830.45, 20,219,252.49 and 4,959,174.06

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Solution

The fourth proportional to 13,480,830.45, 20,219,252.49 and 4,959,174.06 is: 7,438,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,830.45 : 20,219,252.49 = 4,959,174.06 : x
  2. Step 2: Convert to fraction form
    13,480,830.45/20,219,252.49 = 4,959,174.06/x
  3. Step 3: Cross multiply
    13,480,830.45x = 20,219,252.49 × 4,959,174.06
  4. Step 4: Simplify right side
    13,480,830.45x = 100,270,792,460,998.39
  5. Step 5: Solve for x
    x = 100,270,792,460,998.39/13,480,830.45
  6. Step 6: Final answer
    x = 7,438,027.86

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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.