Home / 12,999,930.48-17,939,683.17-7,198,588.44

Finding the Fourth Proportional to 12,999,930.48, 17,939,683.17 and 7,198,588.44

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Solution

The fourth proportional to 12,999,930.48, 17,939,683.17 and 7,198,588.44 is: 9,933,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,930.48 : 17,939,683.17 = 7,198,588.44 : x
  2. Step 2: Convert to fraction form
    12,999,930.48/17,939,683.17 = 7,198,588.44/x
  3. Step 3: Cross multiply
    12,999,930.48x = 17,939,683.17 × 7,198,588.44
  4. Step 4: Simplify right side
    12,999,930.48x = 129,140,395,884,824.58
  5. Step 5: Solve for x
    x = 129,140,395,884,824.58/12,999,930.48
  6. Step 6: Final answer
    x = 9,933,929.73

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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.