Home / 213,586,234.07-320,391,683.82-82,429,190.15

Finding the Fourth Proportional to 213,586,234.07, 320,391,683.82 and 82,429,190.15

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Solution

The fourth proportional to 213,586,234.07, 320,391,683.82 and 82,429,190.15 is: 123,648,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,586,234.07 : 320,391,683.82 = 82,429,190.15 : x
  2. Step 2: Convert to fraction form
    213,586,234.07/320,391,683.82 = 82,429,190.15/x
  3. Step 3: Cross multiply
    213,586,234.07x = 320,391,683.82 × 82,429,190.15
  4. Step 4: Simplify right side
    213,586,234.07x = 26,409,627,026,475,500
  5. Step 5: Solve for x
    x = 26,409,627,026,475,500/213,586,234.07
  6. Step 6: Final answer
    x = 123,648,544.78

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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.