Home / 782,848,553.80-1,175,179,512.30-420,051,497.80

Finding the Fourth Proportional to 782,848,553.80, 1,175,179,512.30 and 420,051,497.80

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Solution

The fourth proportional to 782,848,553.80, 1,175,179,512.30 and 420,051,497.80 is: 630,563,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,848,553.80 : 1,175,179,512.30 = 420,051,497.80 : x
  2. Step 2: Convert to fraction form
    782,848,553.80/1,175,179,512.30 = 420,051,497.80/x
  3. Step 3: Cross multiply
    782,848,553.80x = 1,175,179,512.30 × 420,051,497.80
  4. Step 4: Simplify right side
    782,848,553.80x = 493,635,914,325,488,512
  5. Step 5: Solve for x
    x = 493,635,914,325,488,512/782,848,553.80
  6. Step 6: Final answer
    x = 630,563,743.05

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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.