Home / 315,378,879,311.26-435,217,180,209.42-178,198,760,247.22

Finding the Fourth Proportional to 315,378,879,311.26, 435,217,180,209.42 and 178,198,760,247.22

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Solution

The fourth proportional to 315,378,879,311.26, 435,217,180,209.42 and 178,198,760,247.22 is: 245,911,083,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,378,879,311.26 : 435,217,180,209.42 = 178,198,760,247.22 : x
  2. Step 2: Convert to fraction form
    315,378,879,311.26/435,217,180,209.42 = 178,198,760,247.22/x
  3. Step 3: Cross multiply
    315,378,879,311.26x = 435,217,180,209.42 × 178,198,760,247.22
  4. Step 4: Simplify right side
    315,378,879,311.26x = 77,555,161,951,609,567,576,064
  5. Step 5: Solve for x
    x = 77,555,161,951,609,567,576,064/315,378,879,311.26
  6. Step 6: Final answer
    x = 245,911,083,586.13

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1.5x scale

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.