Home / 12,982,656.66-17,910,033.57-8,400,458.58

Finding the Fourth Proportional to 12,982,656.66, 17,910,033.57 and 8,400,458.58

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Solution

The fourth proportional to 12,982,656.66, 17,910,033.57 and 8,400,458.58 is: 11,588,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,656.66 : 17,910,033.57 = 8,400,458.58 : x
  2. Step 2: Convert to fraction form
    12,982,656.66/17,910,033.57 = 8,400,458.58/x
  3. Step 3: Cross multiply
    12,982,656.66x = 17,910,033.57 × 8,400,458.58
  4. Step 4: Simplify right side
    12,982,656.66x = 150,452,495,171,194.53
  5. Step 5: Solve for x
    x = 150,452,495,171,194.53/12,982,656.66
  6. Step 6: Final answer
    x = 11,588,729.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.