Home / 215,898,107.70-323,847,161.55-211,593,435.60

Finding the Fourth Proportional to 215,898,107.70, 323,847,161.55 and 211,593,435.60

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Solution

The fourth proportional to 215,898,107.70, 323,847,161.55 and 211,593,435.60 is: 317,390,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898,107.70 : 323,847,161.55 = 211,593,435.60 : x
  2. Step 2: Convert to fraction form
    215,898,107.70/323,847,161.55 = 211,593,435.60/x
  3. Step 3: Cross multiply
    215,898,107.70x = 323,847,161.55 × 211,593,435.60
  4. Step 4: Simplify right side
    215,898,107.70x = 68,523,933,521,672,720
  5. Step 5: Solve for x
    x = 68,523,933,521,672,720/215,898,107.70
  6. Step 6: Final answer
    x = 317,390,153.40

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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.