Home / 688,497,616.49-1,032,949,047.05-222,150,291.90

Finding the Fourth Proportional to 688,497,616.49, 1,032,949,047.05 and 222,150,291.90

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Solution

The fourth proportional to 688,497,616.49, 1,032,949,047.05 and 222,150,291.90 is: 333,290,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,497,616.49 : 1,032,949,047.05 = 222,150,291.90 : x
  2. Step 2: Convert to fraction form
    688,497,616.49/1,032,949,047.05 = 222,150,291.90/x
  3. Step 3: Cross multiply
    688,497,616.49x = 1,032,949,047.05 × 222,150,291.90
  4. Step 4: Simplify right side
    688,497,616.49x = 229,469,932,318,873,568
  5. Step 5: Solve for x
    x = 229,469,932,318,873,568/688,497,616.49
  6. Step 6: Final answer
    x = 333,290,815.86

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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.