Home / 221,145,227.25-305,290,898.60-137,540,306.94

Finding the Fourth Proportional to 221,145,227.25, 305,290,898.60 and 137,540,306.94

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Solution

The fourth proportional to 221,145,227.25, 305,290,898.60 and 137,540,306.94 is: 189,874,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,145,227.25 : 305,290,898.60 = 137,540,306.94 : x
  2. Step 2: Convert to fraction form
    221,145,227.25/305,290,898.60 = 137,540,306.94/x
  3. Step 3: Cross multiply
    221,145,227.25x = 305,290,898.60 × 137,540,306.94
  4. Step 4: Simplify right side
    221,145,227.25x = 41,989,803,899,432,416
  5. Step 5: Solve for x
    x = 41,989,803,899,432,416/221,145,227.25
  6. Step 6: Final answer
    x = 189,874,339.24

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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.