Home / 18,399,162.72-25,391,011.07-10,139,520.85

Finding the Fourth Proportional to 18,399,162.72, 25,391,011.07 and 10,139,520.85

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Solution

The fourth proportional to 18,399,162.72, 25,391,011.07 and 10,139,520.85 is: 13,992,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399,162.72 : 25,391,011.07 = 10,139,520.85 : x
  2. Step 2: Convert to fraction form
    18,399,162.72/25,391,011.07 = 10,139,520.85/x
  3. Step 3: Cross multiply
    18,399,162.72x = 25,391,011.07 × 10,139,520.85
  4. Step 4: Simplify right side
    18,399,162.72x = 257,452,686,032,670.69
  5. Step 5: Solve for x
    x = 257,452,686,032,670.69/18,399,162.72
  6. Step 6: Final answer
    x = 13,992,630.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.