Home / 9,115,999.20-13,673,998.80-3,721,107.60

Finding the Fourth Proportional to 9,115,999.20, 13,673,998.80 and 3,721,107.60

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Solution

The fourth proportional to 9,115,999.20, 13,673,998.80 and 3,721,107.60 is: 5,581,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115,999.20 : 13,673,998.80 = 3,721,107.60 : x
  2. Step 2: Convert to fraction form
    9,115,999.20/13,673,998.80 = 3,721,107.60/x
  3. Step 3: Cross multiply
    9,115,999.20x = 13,673,998.80 × 3,721,107.60
  4. Step 4: Simplify right side
    9,115,999.20x = 50,882,420,857,070.88
  5. Step 5: Solve for x
    x = 50,882,420,857,070.88/9,115,999.20
  6. Step 6: Final answer
    x = 5,581,661.40

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Similar ratio
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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.