Home / 203,333,115.78-280,714,927.80-155,558,486.92

Finding the Fourth Proportional to 203,333,115.78, 280,714,927.80 and 155,558,486.92

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Solution

The fourth proportional to 203,333,115.78, 280,714,927.80 and 155,558,486.92 is: 214,758,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,333,115.78 : 280,714,927.80 = 155,558,486.92 : x
  2. Step 2: Convert to fraction form
    203,333,115.78/280,714,927.80 = 155,558,486.92/x
  3. Step 3: Cross multiply
    203,333,115.78x = 280,714,927.80 × 155,558,486.92
  4. Step 4: Simplify right side
    203,333,115.78x = 43,667,589,424,425,040
  5. Step 5: Solve for x
    x = 43,667,589,424,425,040/203,333,115.78
  6. Step 6: Final answer
    x = 214,758,866.29

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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.