Home / 20,219,782.28-30,341,658.18-7,449,247.76

Finding the Fourth Proportional to 20,219,782.28, 30,341,658.18 and 7,449,247.76

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Solution

The fourth proportional to 20,219,782.28, 30,341,658.18 and 7,449,247.76 is: 11,178,286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,782.28 : 30,341,658.18 = 7,449,247.76 : x
  2. Step 2: Convert to fraction form
    20,219,782.28/30,341,658.18 = 7,449,247.76/x
  3. Step 3: Cross multiply
    20,219,782.28x = 30,341,658.18 × 7,449,247.76
  4. Step 4: Simplify right side
    20,219,782.28x = 226,022,529,232,050.66
  5. Step 5: Solve for x
    x = 226,022,529,232,050.66/20,219,782.28
  6. Step 6: Final answer
    x = 11,178,286.99

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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.