11, 6.5, 7.5, 2.9 = 27.9 albums EPs 300k, 150k (US #s), 3,5k (US #s) which brings the total to 28.3 million albums.
Not including 2 million from the Dreamgirls soundtrack.
well if she releases an album a year, and they sell at an average of 2 M an album and since she needs to sell 74M copies to reach that number, then yes, in exactly 37 years.
And if I'm very honest, I wouldn't be surprised if that would happen.