Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Suppose
a
1
,
a
2
,
2
,
a
3
,
a
4
a_1, a_2, 2, a_3, a_4
a
1
,
a
2
,
2
,
a
3
,
a
4
be in an arithmeticogeometric progression. If the common ratio of the corresponding geometric progression is 2 and the sum of all 5 terms of the arithmeticogeometric progression is
49
2
\frac{49}{2}
2
49
, then
a
4
a_4
a
4
is equal to ______.
Browse the problem library