Home / 12,147,865.80-18,219,174.30-5,324,425.80

Finding the Fourth Proportional to 12,147,865.80, 18,219,174.30 and 5,324,425.80

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Solution

The fourth proportional to 12,147,865.80, 18,219,174.30 and 5,324,425.80 is: 7,985,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147,865.80 : 18,219,174.30 = 5,324,425.80 : x
  2. Step 2: Convert to fraction form
    12,147,865.80/18,219,174.30 = 5,324,425.80/x
  3. Step 3: Cross multiply
    12,147,865.80x = 18,219,174.30 × 5,324,425.80
  4. Step 4: Simplify right side
    12,147,865.80x = 97,006,641,697,616.94
  5. Step 5: Solve for x
    x = 97,006,641,697,616.94/12,147,865.80
  6. Step 6: Final answer
    x = 7,985,488.42

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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.