Home / 12,269,736.60-18,404,432.10-5,538,139.80

Finding the Fourth Proportional to 12,269,736.60, 18,404,432.10 and 5,538,139.80

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Solution

The fourth proportional to 12,269,736.60, 18,404,432.10 and 5,538,139.80 is: 8,307,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,736.60 : 18,404,432.10 = 5,538,139.80 : x
  2. Step 2: Convert to fraction form
    12,269,736.60/18,404,432.10 = 5,538,139.80/x
  3. Step 3: Cross multiply
    12,269,736.60x = 18,404,432.10 × 5,538,139.80
  4. Step 4: Simplify right side
    12,269,736.60x = 101,926,317,909,407.58
  5. Step 5: Solve for x
    x = 101,926,317,909,407.58/12,269,736.60
  6. Step 6: Final answer
    x = 8,307,131.70

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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.