Home / 521,520,802,314.80-782,281,203,472.20-149,291,022,858.80

Finding the Fourth Proportional to 521,520,802,314.80, 782,281,203,472.20 and 149,291,022,858.80

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Solution

The fourth proportional to 521,520,802,314.80, 782,281,203,472.20 and 149,291,022,858.80 is: 223,936,534,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,802,314.80 : 782,281,203,472.20 = 149,291,022,858.80 : x
  2. Step 2: Convert to fraction form
    521,520,802,314.80/782,281,203,472.20 = 149,291,022,858.80/x
  3. Step 3: Cross multiply
    521,520,802,314.80x = 782,281,203,472.20 × 149,291,022,858.80
  4. Step 4: Simplify right side
    521,520,802,314.80x = 116,787,561,029,577,763,454,976
  5. Step 5: Solve for x
    x = 116,787,561,029,577,763,454,976/521,520,802,314.80
  6. Step 6: Final answer
    x = 223,936,534,288.20

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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.