Home / 20,728,014.35-31,096,006.70-7,947,522.36

Finding the Fourth Proportional to 20,728,014.35, 31,096,006.70 and 7,947,522.36

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Solution

The fourth proportional to 20,728,014.35, 31,096,006.70 and 7,947,522.36 is: 11,922,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,014.35 : 31,096,006.70 = 7,947,522.36 : x
  2. Step 2: Convert to fraction form
    20,728,014.35/31,096,006.70 = 7,947,522.36/x
  3. Step 3: Cross multiply
    20,728,014.35x = 31,096,006.70 × 7,947,522.36
  4. Step 4: Simplify right side
    20,728,014.35x = 247,136,208,515,222.22
  5. Step 5: Solve for x
    x = 247,136,208,515,222.22/20,728,014.35
  6. Step 6: Final answer
    x = 11,922,811.53

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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.