Home / 280,955,706.60-421,578,872.10-203,868,166.44

Finding the Fourth Proportional to 280,955,706.60, 421,578,872.10 and 203,868,166.44

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Solution

The fourth proportional to 280,955,706.60, 421,578,872.10 and 203,868,166.44 is: 305,907,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,955,706.60 : 421,578,872.10 = 203,868,166.44 : x
  2. Step 2: Convert to fraction form
    280,955,706.60/421,578,872.10 = 203,868,166.44/x
  3. Step 3: Cross multiply
    280,955,706.60x = 421,578,872.10 × 203,868,166.44
  4. Step 4: Simplify right side
    280,955,706.60x = 85,946,511,664,870,272
  5. Step 5: Solve for x
    x = 85,946,511,664,870,272/280,955,706.60
  6. Step 6: Final answer
    x = 305,907,691.66

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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.