Home / 490,591,320.45-735,509,800.33-253,987,202.36

Finding the Fourth Proportional to 490,591,320.45, 735,509,800.33 and 253,987,202.36

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Solution

The fourth proportional to 490,591,320.45, 735,509,800.33 and 253,987,202.36 is: 380,785,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,591,320.45 : 735,509,800.33 = 253,987,202.36 : x
  2. Step 2: Convert to fraction form
    490,591,320.45/735,509,800.33 = 253,987,202.36/x
  3. Step 3: Cross multiply
    490,591,320.45x = 735,509,800.33 × 253,987,202.36
  4. Step 4: Simplify right side
    490,591,320.45x = 186,810,076,489,231,424
  5. Step 5: Solve for x
    x = 186,810,076,489,231,424/490,591,320.45
  6. Step 6: Final answer
    x = 380,785,531.06

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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.