Home / 279,449,701.27-385,629,360.05-152,287,679.30

Finding the Fourth Proportional to 279,449,701.27, 385,629,360.05 and 152,287,679.30

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Solution

The fourth proportional to 279,449,701.27, 385,629,360.05 and 152,287,679.30 is: 210,150,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,449,701.27 : 385,629,360.05 = 152,287,679.30 : x
  2. Step 2: Convert to fraction form
    279,449,701.27/385,629,360.05 = 152,287,679.30/x
  3. Step 3: Cross multiply
    279,449,701.27x = 385,629,360.05 × 152,287,679.30
  4. Step 4: Simplify right side
    279,449,701.27x = 58,726,600,311,958,640
  5. Step 5: Solve for x
    x = 58,726,600,311,958,640/279,449,701.27
  6. Step 6: Final answer
    x = 210,150,878.83

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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.