Ellipse

Let each of the two ellipses E1:‌

x2

a2

+‌

y2

b2

=1,(a>b) and E2:‌

x2

A2

+‌

y2

B2

=1,(A<B) have eccentricity ‌

4

5

. Let the lengths of the latus recta of E1 and E2 be l1 and l2, respectively, such that 2l12=9l2. If the distance between the foci of E1 is 8 , then the distance between the foci of E2 is