Home / 556,924,905.72-768,511,377.18-321,990,706.44

Finding the Fourth Proportional to 556,924,905.72, 768,511,377.18 and 321,990,706.44

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Solution

The fourth proportional to 556,924,905.72, 768,511,377.18 and 321,990,706.44 is: 444,321,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,924,905.72 : 768,511,377.18 = 321,990,706.44 : x
  2. Step 2: Convert to fraction form
    556,924,905.72/768,511,377.18 = 321,990,706.44/x
  3. Step 3: Cross multiply
    556,924,905.72x = 768,511,377.18 × 321,990,706.44
  4. Step 4: Simplify right side
    556,924,905.72x = 247,453,521,245,365,472
  5. Step 5: Solve for x
    x = 247,453,521,245,365,472/556,924,905.72
  6. Step 6: Final answer
    x = 444,321,161.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.