Home / 214,419,557.82-320,817,699.09-127,027,979.22

Finding the Fourth Proportional to 214,419,557.82, 320,817,699.09 and 127,027,979.22

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Solution

The fourth proportional to 214,419,557.82, 320,817,699.09 and 127,027,979.22 is: 190,061,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,419,557.82 : 320,817,699.09 = 127,027,979.22 : x
  2. Step 2: Convert to fraction form
    214,419,557.82/320,817,699.09 = 127,027,979.22/x
  3. Step 3: Cross multiply
    214,419,557.82x = 320,817,699.09 × 127,027,979.22
  4. Step 4: Simplify right side
    214,419,557.82x = 40,752,824,013,412,728
  5. Step 5: Solve for x
    x = 40,752,824,013,412,728/214,419,557.82
  6. Step 6: Final answer
    x = 190,061,132.61

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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.