Home / 438,471,400.26-657,853,935.03-143,380,128.54

Finding the Fourth Proportional to 438,471,400.26, 657,853,935.03 and 143,380,128.54

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Solution

The fourth proportional to 438,471,400.26, 657,853,935.03 and 143,380,128.54 is: 215,118,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,471,400.26 : 657,853,935.03 = 143,380,128.54 : x
  2. Step 2: Convert to fraction form
    438,471,400.26/657,853,935.03 = 143,380,128.54/x
  3. Step 3: Cross multiply
    438,471,400.26x = 657,853,935.03 × 143,380,128.54
  4. Step 4: Simplify right side
    438,471,400.26x = 94,323,181,765,146,192
  5. Step 5: Solve for x
    x = 94,323,181,765,146,192/438,471,400.26
  6. Step 6: Final answer
    x = 215,118,207.73

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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.