Home / 12,463,635.70-18,695,453.55-7,791,037.30

Finding the Fourth Proportional to 12,463,635.70, 18,695,453.55 and 7,791,037.30

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Solution

The fourth proportional to 12,463,635.70, 18,695,453.55 and 7,791,037.30 is: 11,686,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,635.70 : 18,695,453.55 = 7,791,037.30 : x
  2. Step 2: Convert to fraction form
    12,463,635.70/18,695,453.55 = 7,791,037.30/x
  3. Step 3: Cross multiply
    12,463,635.70x = 18,695,453.55 × 7,791,037.30
  4. Step 4: Simplify right side
    12,463,635.70x = 145,656,975,948,467.41
  5. Step 5: Solve for x
    x = 145,656,975,948,467.41/12,463,635.70
  6. Step 6: Final answer
    x = 11,686,555.95

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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.