Home / 215,920,229.45-297,660,003.86-153,932,951.21

Finding the Fourth Proportional to 215,920,229.45, 297,660,003.86 and 153,932,951.21

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Solution

The fourth proportional to 215,920,229.45, 297,660,003.86 and 153,932,951.21 is: 212,206,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920,229.45 : 297,660,003.86 = 153,932,951.21 : x
  2. Step 2: Convert to fraction form
    215,920,229.45/297,660,003.86 = 153,932,951.21/x
  3. Step 3: Cross multiply
    215,920,229.45x = 297,660,003.86 × 153,932,951.21
  4. Step 4: Simplify right side
    215,920,229.45x = 45,819,682,850,246,328
  5. Step 5: Solve for x
    x = 45,819,682,850,246,328/215,920,229.45
  6. Step 6: Final answer
    x = 212,206,530.94

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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.