Home / 20,669,588.10-31,004,382.15-9,907,907.85

Finding the Fourth Proportional to 20,669,588.10, 31,004,382.15 and 9,907,907.85

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Solution

The fourth proportional to 20,669,588.10, 31,004,382.15 and 9,907,907.85 is: 14,861,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,588.10 : 31,004,382.15 = 9,907,907.85 : x
  2. Step 2: Convert to fraction form
    20,669,588.10/31,004,382.15 = 9,907,907.85/x
  3. Step 3: Cross multiply
    20,669,588.10x = 31,004,382.15 × 9,907,907.85
  4. Step 4: Simplify right side
    20,669,588.10x = 307,188,561,288,384.88
  5. Step 5: Solve for x
    x = 307,188,561,288,384.88/20,669,588.10
  6. Step 6: Final answer
    x = 14,861,861.78

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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.