31% of American adults surveyed stated that giving up their phone for a day would be more difficult than giving up their significant other. In? 2012, the United States population over the age of 18 was approximately? 240,210,000. According to recent research from the Pew? Foundation, 91% of all American adults have cell phones of some type. Use the statistics given to determine the approximate number of American adults who would find giving up their phone more difficult than giving up their partner. Approximately nothing American adults who would find giving up their phone more difficult than giving up their partner.