Home / 13,141,091.20-18,134,512.86-7,339,957.60

Finding the Fourth Proportional to 13,141,091.20, 18,134,512.86 and 7,339,957.60

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Solution

The fourth proportional to 13,141,091.20, 18,134,512.86 and 7,339,957.60 is: 10,129,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,091.20 : 18,134,512.86 = 7,339,957.60 : x
  2. Step 2: Convert to fraction form
    13,141,091.20/18,134,512.86 = 7,339,957.60/x
  3. Step 3: Cross multiply
    13,141,091.20x = 18,134,512.86 × 7,339,957.60
  4. Step 4: Simplify right side
    13,141,091.20x = 133,106,555,489,054.72
  5. Step 5: Solve for x
    x = 133,106,555,489,054.72/13,141,091.20
  6. Step 6: Final answer
    x = 10,129,033.69

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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.