Home / 221,294,608.20-305,384,908.86-122,175,335.88

Finding the Fourth Proportional to 221,294,608.20, 305,384,908.86 and 122,175,335.88

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Solution

The fourth proportional to 221,294,608.20, 305,384,908.86 and 122,175,335.88 is: 168,601,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,294,608.20 : 305,384,908.86 = 122,175,335.88 : x
  2. Step 2: Convert to fraction form
    221,294,608.20/305,384,908.86 = 122,175,335.88/x
  3. Step 3: Cross multiply
    221,294,608.20x = 305,384,908.86 × 122,175,335.88
  4. Step 4: Simplify right side
    221,294,608.20x = 37,310,503,812,653,688
  5. Step 5: Solve for x
    x = 37,310,503,812,653,688/221,294,608.20
  6. Step 6: Final answer
    x = 168,601,052.31

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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.