Home / 11,872,405.80-17,808,608.70-7,085,500.20

Finding the Fourth Proportional to 11,872,405.80, 17,808,608.70 and 7,085,500.20

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Solution

The fourth proportional to 11,872,405.80, 17,808,608.70 and 7,085,500.20 is: 10,628,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872,405.80 : 17,808,608.70 = 7,085,500.20 : x
  2. Step 2: Convert to fraction form
    11,872,405.80/17,808,608.70 = 7,085,500.20/x
  3. Step 3: Cross multiply
    11,872,405.80x = 17,808,608.70 × 7,085,500.20
  4. Step 4: Simplify right side
    11,872,405.80x = 126,182,900,505,571.73
  5. Step 5: Solve for x
    x = 126,182,900,505,571.73/11,872,405.80
  6. Step 6: Final answer
    x = 10,628,250.30

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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.