Home / 782,848,552.80-1,175,179,510.80-420,051,496.80

Finding the Fourth Proportional to 782,848,552.80, 1,175,179,510.80 and 420,051,496.80

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Solution

The fourth proportional to 782,848,552.80, 1,175,179,510.80 and 420,051,496.80 is: 630,563,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,848,552.80 : 1,175,179,510.80 = 420,051,496.80 : x
  2. Step 2: Convert to fraction form
    782,848,552.80/1,175,179,510.80 = 420,051,496.80/x
  3. Step 3: Cross multiply
    782,848,552.80x = 1,175,179,510.80 × 420,051,496.80
  4. Step 4: Simplify right side
    782,848,552.80x = 493,635,912,520,231,744
  5. Step 5: Solve for x
    x = 493,635,912,520,231,744/782,848,552.80
  6. Step 6: Final answer
    x = 630,563,741.55

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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.