Home / 498,203,786.40-747,305,679.60-191,505,904.80

Finding the Fourth Proportional to 498,203,786.40, 747,305,679.60 and 191,505,904.80

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Solution

The fourth proportional to 498,203,786.40, 747,305,679.60 and 191,505,904.80 is: 287,258,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,203,786.40 : 747,305,679.60 = 191,505,904.80 : x
  2. Step 2: Convert to fraction form
    498,203,786.40/747,305,679.60 = 191,505,904.80/x
  3. Step 3: Cross multiply
    498,203,786.40x = 747,305,679.60 × 191,505,904.80
  4. Step 4: Simplify right side
    498,203,786.40x = 143,113,450,333,976,912
  5. Step 5: Solve for x
    x = 143,113,450,333,976,912/498,203,786.40
  6. Step 6: Final answer
    x = 287,258,857.20

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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.