Home / 670,311,388.80-1,005,504,849.04-203,987,978.44

Finding the Fourth Proportional to 670,311,388.80, 1,005,504,849.04 and 203,987,978.44

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Solution

The fourth proportional to 670,311,388.80, 1,005,504,849.04 and 203,987,978.44 is: 305,993,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,311,388.80 : 1,005,504,849.04 = 203,987,978.44 : x
  2. Step 2: Convert to fraction form
    670,311,388.80/1,005,504,849.04 = 203,987,978.44/x
  3. Step 3: Cross multiply
    670,311,388.80x = 1,005,504,849.04 × 203,987,978.44
  4. Step 4: Simplify right side
    670,311,388.80x = 205,110,901,467,286,976
  5. Step 5: Solve for x
    x = 205,110,901,467,286,976/670,311,388.80
  6. Step 6: Final answer
    x = 305,993,460.49

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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.