Home / 12,219,778.10-18,349,251.15-9,716,251.70

Finding the Fourth Proportional to 12,219,778.10, 18,349,251.15 and 9,716,251.70

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Solution

The fourth proportional to 12,219,778.10, 18,349,251.15 and 9,716,251.70 is: 14,589,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,778.10 : 18,349,251.15 = 9,716,251.70 : x
  2. Step 2: Convert to fraction form
    12,219,778.10/18,349,251.15 = 9,716,251.70/x
  3. Step 3: Cross multiply
    12,219,778.10x = 18,349,251.15 × 9,716,251.70
  4. Step 4: Simplify right side
    12,219,778.10x = 178,285,942,679,914.44
  5. Step 5: Solve for x
    x = 178,285,942,679,914.44/12,219,778.10
  6. Step 6: Final answer
    x = 14,589,949.28

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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.