Home / 221,290,855.80-331,936,283.70-156,667,630.20

Finding the Fourth Proportional to 221,290,855.80, 331,936,283.70 and 156,667,630.20

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Solution

The fourth proportional to 221,290,855.80, 331,936,283.70 and 156,667,630.20 is: 235,001,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,290,855.80 : 331,936,283.70 = 156,667,630.20 : x
  2. Step 2: Convert to fraction form
    221,290,855.80/331,936,283.70 = 156,667,630.20/x
  3. Step 3: Cross multiply
    221,290,855.80x = 331,936,283.70 × 156,667,630.20
  4. Step 4: Simplify right side
    221,290,855.80x = 52,003,670,944,673,880
  5. Step 5: Solve for x
    x = 52,003,670,944,673,880/221,290,855.80
  6. Step 6: Final answer
    x = 235,001,445.30

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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.