Home / 128,324,216.10-192,462,704.55-79,715,079.30

Finding the Fourth Proportional to 128,324,216.10, 192,462,704.55 and 79,715,079.30

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Solution

The fourth proportional to 128,324,216.10, 192,462,704.55 and 79,715,079.30 is: 119,557,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,324,216.10 : 192,462,704.55 = 79,715,079.30 : x
  2. Step 2: Convert to fraction form
    128,324,216.10/192,462,704.55 = 79,715,079.30/x
  3. Step 3: Cross multiply
    128,324,216.10x = 192,462,704.55 × 79,715,079.30
  4. Step 4: Simplify right side
    128,324,216.10x = 15,342,179,755,495,722
  5. Step 5: Solve for x
    x = 15,342,179,755,495,722/128,324,216.10
  6. Step 6: Final answer
    x = 119,557,946.44

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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.