Fixed point may be what you really need.
Floating point is designed to handle both very large numbers and very small numbers where precision is not that important.
If what you need is hundredths (or thousandths) of a degree for GPS readings, then use integers and write the code understanding that the values are hundredths of a degree (or volt or foot or temperature degree). This makes any math hugely faster. Perhaps it's only necessary to think of the value in full units when it is displayed for human viewing.