Home / 28,755,288.20-43,132,932.30-21,197,016.20

Finding the Fourth Proportional to 28,755,288.20, 43,132,932.30 and 21,197,016.20

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Solution

The fourth proportional to 28,755,288.20, 43,132,932.30 and 21,197,016.20 is: 31,795,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755,288.20 : 43,132,932.30 = 21,197,016.20 : x
  2. Step 2: Convert to fraction form
    28,755,288.20/43,132,932.30 = 21,197,016.20/x
  3. Step 3: Cross multiply
    28,755,288.20x = 43,132,932.30 × 21,197,016.20
  4. Step 4: Simplify right side
    28,755,288.20x = 914,289,464,716,603.12
  5. Step 5: Solve for x
    x = 914,289,464,716,603.12/28,755,288.20
  6. Step 6: Final answer
    x = 31,795,524.30

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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.