Home / 215,898,105.20-323,847,157.80-211,593,433.10

Finding the Fourth Proportional to 215,898,105.20, 323,847,157.80 and 211,593,433.10

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Solution

The fourth proportional to 215,898,105.20, 323,847,157.80 and 211,593,433.10 is: 317,390,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898,105.20 : 323,847,157.80 = 211,593,433.10 : x
  2. Step 2: Convert to fraction form
    215,898,105.20/323,847,157.80 = 211,593,433.10/x
  3. Step 3: Cross multiply
    215,898,105.20x = 323,847,157.80 × 211,593,433.10
  4. Step 4: Simplify right side
    215,898,105.20x = 68,523,931,918,579,440
  5. Step 5: Solve for x
    x = 68,523,931,918,579,440/215,898,105.20
  6. Step 6: Final answer
    x = 317,390,149.65

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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.