Home / 812,515,114.68-1,121,614,133.72-548,554,668.54

Finding the Fourth Proportional to 812,515,114.68, 1,121,614,133.72 and 548,554,668.54

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Solution

The fourth proportional to 812,515,114.68, 1,121,614,133.72 and 548,554,668.54 is: 757,237,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,515,114.68 : 1,121,614,133.72 = 548,554,668.54 : x
  2. Step 2: Convert to fraction form
    812,515,114.68/1,121,614,133.72 = 548,554,668.54/x
  3. Step 3: Cross multiply
    812,515,114.68x = 1,121,614,133.72 × 548,554,668.54
  4. Step 4: Simplify right side
    812,515,114.68x = 615,266,669,349,810,944
  5. Step 5: Solve for x
    x = 615,266,669,349,810,944/812,515,114.68
  6. Step 6: Final answer
    x = 757,237,198.71

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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.