Home / 438,471,403.26-657,853,939.53-143,380,131.54

Finding the Fourth Proportional to 438,471,403.26, 657,853,939.53 and 143,380,131.54

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Solution

The fourth proportional to 438,471,403.26, 657,853,939.53 and 143,380,131.54 is: 215,118,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,471,403.26 : 657,853,939.53 = 143,380,131.54 : x
  2. Step 2: Convert to fraction form
    438,471,403.26/657,853,939.53 = 143,380,131.54/x
  3. Step 3: Cross multiply
    438,471,403.26x = 657,853,939.53 × 143,380,131.54
  4. Step 4: Simplify right side
    438,471,403.26x = 94,323,184,383,918,592
  5. Step 5: Solve for x
    x = 94,323,184,383,918,592/438,471,403.26
  6. Step 6: Final answer
    x = 215,118,212.23

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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.