Home / 7,850,999.20-11,776,498.80-7,284,128.80

Finding the Fourth Proportional to 7,850,999.20, 11,776,498.80 and 7,284,128.80

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Solution

The fourth proportional to 7,850,999.20, 11,776,498.80 and 7,284,128.80 is: 10,926,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850,999.20 : 11,776,498.80 = 7,284,128.80 : x
  2. Step 2: Convert to fraction form
    7,850,999.20/11,776,498.80 = 7,284,128.80/x
  3. Step 3: Cross multiply
    7,850,999.20x = 11,776,498.80 × 7,284,128.80
  4. Step 4: Simplify right side
    7,850,999.20x = 85,781,534,072,245.44
  5. Step 5: Solve for x
    x = 85,781,534,072,245.44/7,850,999.20
  6. Step 6: Final answer
    x = 10,926,193.20

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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.