The table showes real and forescasted shapes for population in three varity of countries.
Overall,it is clear that In three cities also will be expected to increase number of people but unfortunitely , their population is not much rising .Finally they expand not more than in past .
To commance with SAO PAULO,in the past it is contained 15 mln and it was leader in three countries that is why from it is pridicted 24 mln in future but its population has not became expecting result and just rise different only 3 mln than in past.
Comming to the JAKARTA , it was very low degree and was accounted 9.5 mln accordingly it foretell not significent numbers and in 2000 it grew 2 mln and it held only 11,5 mln people.
Finally ,in the SHANGAI , in the past its population was 13.5 mln ,predicters tought that it rising to 17 mnl but it is opposite way finally it is contained 12.5 mln.