Home / 903,540,469.71-1,355,372,965.88-378,380,812.56

Finding the Fourth Proportional to 903,540,469.71, 1,355,372,965.88 and 378,380,812.56

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Solution

The fourth proportional to 903,540,469.71, 1,355,372,965.88 and 378,380,812.56 is: 567,597,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,540,469.71 : 1,355,372,965.88 = 378,380,812.56 : x
  2. Step 2: Convert to fraction form
    903,540,469.71/1,355,372,965.88 = 378,380,812.56/x
  3. Step 3: Cross multiply
    903,540,469.71x = 1,355,372,965.88 × 378,380,812.56
  4. Step 4: Simplify right side
    903,540,469.71x = 512,847,124,145,994,816
  5. Step 5: Solve for x
    x = 512,847,124,145,994,816/903,540,469.71
  6. Step 6: Final answer
    x = 567,597,292.36

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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.