Home / 290,228,433-400,515,237.72-159,848,241

Finding the Fourth Proportional to 290,228,433, 400,515,237.72 and 159,848,241

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Solution

The fourth proportional to 290,228,433, 400,515,237.72 and 159,848,241 is: 220,590,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,228,433 : 400,515,237.72 = 159,848,241 : x
  2. Step 2: Convert to fraction form
    290,228,433/400,515,237.72 = 159,848,241/x
  3. Step 3: Cross multiply
    290,228,433x = 400,515,237.72 × 159,848,241
  4. Step 4: Simplify right side
    290,228,433x = 64,021,656,243,238,856
  5. Step 5: Solve for x
    x = 64,021,656,243,238,856/290,228,433
  6. Step 6: Final answer
    x = 220,590,572.68

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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.