Some add your companies assets after liablities...

No, that is called price to book or P/B. And when doing price/book, book is book, it's not extrapolated out over 4 quarters.

You can't just make up P/E calculation methods. P/E is price/earnings. Yes you can use different sources for earnings (TTM, MRQ, forward estimates, etc) but it is always price/earnings. If you are going to do fundamental price analysis you have to use the proper terms and the proper calculations. If you don't it is wrong at best, deceitful at worst.