Home / 12,103,141.20-18,133,716.60-7,841,115.60

Finding the Fourth Proportional to 12,103,141.20, 18,133,716.60 and 7,841,115.60

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Solution

The fourth proportional to 12,103,141.20, 18,133,716.60 and 7,841,115.60 is: 11,748,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,141.20 : 18,133,716.60 = 7,841,115.60 : x
  2. Step 2: Convert to fraction form
    12,103,141.20/18,133,716.60 = 7,841,115.60/x
  3. Step 3: Cross multiply
    12,103,141.20x = 18,133,716.60 × 7,841,115.60
  4. Step 4: Simplify right side
    12,103,141.20x = 142,188,568,118,238.97
  5. Step 5: Solve for x
    x = 142,188,568,118,238.97/12,103,141.20
  6. Step 6: Final answer
    x = 11,748,071.49

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1.5x scale

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.