Home / 20,727,911.68-31,095,852.70-7,947,419.62

Finding the Fourth Proportional to 20,727,911.68, 31,095,852.70 and 7,947,419.62

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Solution

The fourth proportional to 20,727,911.68, 31,095,852.70 and 7,947,419.62 is: 11,922,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,911.68 : 31,095,852.70 = 7,947,419.62 : x
  2. Step 2: Convert to fraction form
    20,727,911.68/31,095,852.70 = 7,947,419.62/x
  3. Step 3: Cross multiply
    20,727,911.68x = 31,095,852.70 × 7,947,419.62
  4. Step 4: Simplify right side
    20,727,911.68x = 247,131,789,848,609.97
  5. Step 5: Solve for x
    x = 247,131,789,848,609.97/20,727,911.68
  6. Step 6: Final answer
    x = 11,922,657.41

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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.