Home / 7,782,405.30-11,678,156.91-5,621,299.38

Finding the Fourth Proportional to 7,782,405.30, 11,678,156.91 and 5,621,299.38

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Solution

The fourth proportional to 7,782,405.30, 11,678,156.91 and 5,621,299.38 is: 8,435,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782,405.30 : 11,678,156.91 = 5,621,299.38 : x
  2. Step 2: Convert to fraction form
    7,782,405.30/11,678,156.91 = 5,621,299.38/x
  3. Step 3: Cross multiply
    7,782,405.30x = 11,678,156.91 × 5,621,299.38
  4. Step 4: Simplify right side
    7,782,405.30x = 65,646,416,197,725.72
  5. Step 5: Solve for x
    x = 65,646,416,197,725.72/7,782,405.30
  6. Step 6: Final answer
    x = 8,435,234.82

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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.