Home / 222,914,013.65-307,584,429.11-128,836,921.05

Finding the Fourth Proportional to 222,914,013.65, 307,584,429.11 and 128,836,921.05

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Solution

The fourth proportional to 222,914,013.65, 307,584,429.11 and 128,836,921.05 is: 177,773,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,914,013.65 : 307,584,429.11 = 128,836,921.05 : x
  2. Step 2: Convert to fraction form
    222,914,013.65/307,584,429.11 = 128,836,921.05/x
  3. Step 3: Cross multiply
    222,914,013.65x = 307,584,429.11 × 128,836,921.05
  4. Step 4: Simplify right side
    222,914,013.65x = 39,628,230,809,454,392
  5. Step 5: Solve for x
    x = 39,628,230,809,454,392/222,914,013.65
  6. Step 6: Final answer
    x = 177,773,618.45

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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.