Home / 221,290,851.30-331,936,276.95-156,667,625.70

Finding the Fourth Proportional to 221,290,851.30, 331,936,276.95 and 156,667,625.70

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Solution

The fourth proportional to 221,290,851.30, 331,936,276.95 and 156,667,625.70 is: 235,001,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,290,851.30 : 331,936,276.95 = 156,667,625.70 : x
  2. Step 2: Convert to fraction form
    221,290,851.30/331,936,276.95 = 156,667,625.70/x
  3. Step 3: Cross multiply
    221,290,851.30x = 331,936,276.95 × 156,667,625.70
  4. Step 4: Simplify right side
    221,290,851.30x = 52,003,668,393,454,128
  5. Step 5: Solve for x
    x = 52,003,668,393,454,128/221,290,851.30
  6. Step 6: Final answer
    x = 235,001,438.55

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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.