Home / 308,191,348.80-425,303,958.72-168,959,121.12

Finding the Fourth Proportional to 308,191,348.80, 425,303,958.72 and 168,959,121.12

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Solution

The fourth proportional to 308,191,348.80, 425,303,958.72 and 168,959,121.12 is: 233,163,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,191,348.80 : 425,303,958.72 = 168,959,121.12 : x
  2. Step 2: Convert to fraction form
    308,191,348.80/425,303,958.72 = 168,959,121.12/x
  3. Step 3: Cross multiply
    308,191,348.80x = 425,303,958.72 × 168,959,121.12
  4. Step 4: Simplify right side
    308,191,348.80x = 71,858,983,074,187,968
  5. Step 5: Solve for x
    x = 71,858,983,074,187,968/308,191,348.80
  6. Step 6: Final answer
    x = 233,163,530.88

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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.