Home / 654,220,480.38-981,339,268.25-217,521,164.53

Finding the Fourth Proportional to 654,220,480.38, 981,339,268.25 and 217,521,164.53

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Solution

The fourth proportional to 654,220,480.38, 981,339,268.25 and 217,521,164.53 is: 326,284,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,220,480.38 : 981,339,268.25 = 217,521,164.53 : x
  2. Step 2: Convert to fraction form
    654,220,480.38/981,339,268.25 = 217,521,164.53/x
  3. Step 3: Cross multiply
    654,220,480.38x = 981,339,268.25 × 217,521,164.53
  4. Step 4: Simplify right side
    654,220,480.38x = 213,462,060,428,758,048
  5. Step 5: Solve for x
    x = 213,462,060,428,758,048/654,220,480.38
  6. Step 6: Final answer
    x = 326,284,588.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.