Home / 14,120,665.68-21,180,963.80-7,969,859

Finding the Fourth Proportional to 14,120,665.68, 21,180,963.80 and 7,969,859

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Solution

The fourth proportional to 14,120,665.68, 21,180,963.80 and 7,969,859 is: 11,954,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,665.68 : 21,180,963.80 = 7,969,859 : x
  2. Step 2: Convert to fraction form
    14,120,665.68/21,180,963.80 = 7,969,859/x
  3. Step 3: Cross multiply
    14,120,665.68x = 21,180,963.80 × 7,969,859
  4. Step 4: Simplify right side
    14,120,665.68x = 168,809,294,970,104.22
  5. Step 5: Solve for x
    x = 168,809,294,970,104.22/14,120,665.68
  6. Step 6: Final answer
    x = 11,954,768.90

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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.