Home / 812,179,481.59-1,120,821,318.26-440,901,511.75

Finding the Fourth Proportional to 812,179,481.59, 1,120,821,318.26 and 440,901,511.75

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Solution

The fourth proportional to 812,179,481.59, 1,120,821,318.26 and 440,901,511.75 is: 608,451,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,179,481.59 : 1,120,821,318.26 = 440,901,511.75 : x
  2. Step 2: Convert to fraction form
    812,179,481.59/1,120,821,318.26 = 440,901,511.75/x
  3. Step 3: Cross multiply
    812,179,481.59x = 1,120,821,318.26 × 440,901,511.75
  4. Step 4: Simplify right side
    812,179,481.59x = 494,171,813,622,461,888
  5. Step 5: Solve for x
    x = 494,171,813,622,461,888/812,179,481.59
  6. Step 6: Final answer
    x = 608,451,487.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.