Home / 842,795,843.96-1,261,675,025.79-509,795,093.39

Finding the Fourth Proportional to 842,795,843.96, 1,261,675,025.79 and 509,795,093.39

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Solution

The fourth proportional to 842,795,843.96, 1,261,675,025.79 and 509,795,093.39 is: 763,169,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,795,843.96 : 1,261,675,025.79 = 509,795,093.39 : x
  2. Step 2: Convert to fraction form
    842,795,843.96/1,261,675,025.79 = 509,795,093.39/x
  3. Step 3: Cross multiply
    842,795,843.96x = 1,261,675,025.79 × 509,795,093.39
  4. Step 4: Simplify right side
    842,795,843.96x = 643,195,737,592,198,144
  5. Step 5: Solve for x
    x = 643,195,737,592,198,144/842,795,843.96
  6. Step 6: Final answer
    x = 763,169,090.36

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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.