Home / 289,491,409.26-399,501,231.75-157,332,413.34

Finding the Fourth Proportional to 289,491,409.26, 399,501,231.75 and 157,332,413.34

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Solution

The fourth proportional to 289,491,409.26, 399,501,231.75 and 157,332,413.34 is: 217,120,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,491,409.26 : 399,501,231.75 = 157,332,413.34 : x
  2. Step 2: Convert to fraction form
    289,491,409.26/399,501,231.75 = 157,332,413.34/x
  3. Step 3: Cross multiply
    289,491,409.26x = 399,501,231.75 × 157,332,413.34
  4. Step 4: Simplify right side
    289,491,409.26x = 62,854,492,923,530,136
  5. Step 5: Solve for x
    x = 62,854,492,923,530,136/289,491,409.26
  6. Step 6: Final answer
    x = 217,120,408.11

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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.