Home / 1,171,496,716.62-1,616,690,161.44-642,856,078.86

Finding the Fourth Proportional to 1,171,496,716.62, 1,616,690,161.44 and 642,856,078.86

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Solution

The fourth proportional to 1,171,496,716.62, 1,616,690,161.44 and 642,856,078.86 is: 887,154,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,496,716.62 : 1,616,690,161.44 = 642,856,078.86 : x
  2. Step 2: Convert to fraction form
    1,171,496,716.62/1,616,690,161.44 = 642,856,078.86/x
  3. Step 3: Cross multiply
    1,171,496,716.62x = 1,616,690,161.44 × 642,856,078.86
  4. Step 4: Simplify right side
    1,171,496,716.62x = 1,039,299,097,914,858,880
  5. Step 5: Solve for x
    x = 1,039,299,097,914,858,880/1,171,496,716.62
  6. Step 6: Final answer
    x = 887,154,938.78

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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.