Step 1: \ \

The sequence is $\"\"$ .

The first term is $\"\"$ .

The $\"\"$ term and the $\"\"$ term of the sequence $\"\"$ are,

$\"\"$ and $\"\"$ .

The common ratio is $\"\"$ .

$\"\"$ .

Step 2: \ \

Find the second term by substituting $\"\"$ in $\"\"$ .

$\"\"$ .

Find the third term of the sequence by substituting $\"\"$ in $\"\"$ .

$\"\"$ .

Find the fourth term of the sequence by substituting $\"\"$ in $\"\"$ .

$\"\"$ .

Solution; \ \

The common ratio $\"\"$ .

First four terms are $\"\"$ and $\"\"$ .