Home / 279,481,328.28-385,685,728.56-160,394,424.30

Finding the Fourth Proportional to 279,481,328.28, 385,685,728.56 and 160,394,424.30

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Solution

The fourth proportional to 279,481,328.28, 385,685,728.56 and 160,394,424.30 is: 221,345,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,481,328.28 : 385,685,728.56 = 160,394,424.30 : x
  2. Step 2: Convert to fraction form
    279,481,328.28/385,685,728.56 = 160,394,424.30/x
  3. Step 3: Cross multiply
    279,481,328.28x = 385,685,728.56 × 160,394,424.30
  4. Step 4: Simplify right side
    279,481,328.28x = 61,861,840,393,107,272
  5. Step 5: Solve for x
    x = 61,861,840,393,107,272/279,481,328.28
  6. Step 6: Final answer
    x = 221,345,163.82

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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.