Home / 7,876,822.80-11,815,234.20-6,659,101.20

Finding the Fourth Proportional to 7,876,822.80, 11,815,234.20 and 6,659,101.20

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Solution

The fourth proportional to 7,876,822.80, 11,815,234.20 and 6,659,101.20 is: 9,988,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,822.80 : 11,815,234.20 = 6,659,101.20 : x
  2. Step 2: Convert to fraction form
    7,876,822.80/11,815,234.20 = 6,659,101.20/x
  3. Step 3: Cross multiply
    7,876,822.80x = 11,815,234.20 × 6,659,101.20
  4. Step 4: Simplify right side
    7,876,822.80x = 78,678,840,239,501.03
  5. Step 5: Solve for x
    x = 78,678,840,239,501.03/7,876,822.80
  6. Step 6: Final answer
    x = 9,988,651.80

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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.