Home / 279,077,251.20-385,126,611.80-155,347,157.56

Finding the Fourth Proportional to 279,077,251.20, 385,126,611.80 and 155,347,157.56

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Solution

The fourth proportional to 279,077,251.20, 385,126,611.80 and 155,347,157.56 is: 214,379,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,077,251.20 : 385,126,611.80 = 155,347,157.56 : x
  2. Step 2: Convert to fraction form
    279,077,251.20/385,126,611.80 = 155,347,157.56/x
  3. Step 3: Cross multiply
    279,077,251.20x = 385,126,611.80 × 155,347,157.56
  4. Step 4: Simplify right side
    279,077,251.20x = 59,828,324,443,843,560
  5. Step 5: Solve for x
    x = 59,828,324,443,843,560/279,077,251.20
  6. Step 6: Final answer
    x = 214,379,080.30

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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.