Home / 7,981,855.80-11,972,783.70-3,190,284.60

Finding the Fourth Proportional to 7,981,855.80, 11,972,783.70 and 3,190,284.60

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Solution

The fourth proportional to 7,981,855.80, 11,972,783.70 and 3,190,284.60 is: 4,785,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,855.80 : 11,972,783.70 = 3,190,284.60 : x
  2. Step 2: Convert to fraction form
    7,981,855.80/11,972,783.70 = 3,190,284.60/x
  3. Step 3: Cross multiply
    7,981,855.80x = 11,972,783.70 × 3,190,284.60
  4. Step 4: Simplify right side
    7,981,855.80x = 38,196,587,457,241.02
  5. Step 5: Solve for x
    x = 38,196,587,457,241.02/7,981,855.80
  6. Step 6: Final answer
    x = 4,785,426.90

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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.