Home / 438,471,405.26-657,853,942.54-143,380,133.54

Finding the Fourth Proportional to 438,471,405.26, 657,853,942.54 and 143,380,133.54

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Solution

The fourth proportional to 438,471,405.26, 657,853,942.54 and 143,380,133.54 is: 215,118,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,471,405.26 : 657,853,942.54 = 143,380,133.54 : x
  2. Step 2: Convert to fraction form
    438,471,405.26/657,853,942.54 = 143,380,133.54/x
  3. Step 3: Cross multiply
    438,471,405.26x = 657,853,942.54 × 143,380,133.54
  4. Step 4: Simplify right side
    438,471,405.26x = 94,323,186,131,200,672
  5. Step 5: Solve for x
    x = 94,323,186,131,200,672/438,471,405.26
  6. Step 6: Final answer
    x = 215,118,215.24

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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.