Home / 111,247,672.05-166,871,508.08-72,505,623.15

Finding the Fourth Proportional to 111,247,672.05, 166,871,508.08 and 72,505,623.15

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Solution

The fourth proportional to 111,247,672.05, 166,871,508.08 and 72,505,623.15 is: 108,758,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,247,672.05 : 166,871,508.08 = 72,505,623.15 : x
  2. Step 2: Convert to fraction form
    111,247,672.05/166,871,508.08 = 72,505,623.15/x
  3. Step 3: Cross multiply
    111,247,672.05x = 166,871,508.08 × 72,505,623.15
  4. Step 4: Simplify right side
    111,247,672.05x = 12,099,122,678,958,132
  5. Step 5: Solve for x
    x = 12,099,122,678,958,132/111,247,672.05
  6. Step 6: Final answer
    x = 108,758,434.73

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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.