Home / 210,757,452.72-290,848,728.56-115,386,370.56

Finding the Fourth Proportional to 210,757,452.72, 290,848,728.56 and 115,386,370.56

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Solution

The fourth proportional to 210,757,452.72, 290,848,728.56 and 115,386,370.56 is: 159,235,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,757,452.72 : 290,848,728.56 = 115,386,370.56 : x
  2. Step 2: Convert to fraction form
    210,757,452.72/290,848,728.56 = 115,386,370.56/x
  3. Step 3: Cross multiply
    210,757,452.72x = 290,848,728.56 × 115,386,370.56
  4. Step 4: Simplify right side
    210,757,452.72x = 33,559,979,170,529,016
  5. Step 5: Solve for x
    x = 33,559,979,170,529,016/210,757,452.72
  6. Step 6: Final answer
    x = 159,235,076.80

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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.