I think it's more useful to think in terms of ratios. A Millionaire ($1,000,000) is to a Thousandaire ($1000) as a Billionaire is to a Millionaire. E.g. they h

I think it's more useful to think in terms of ratios. A Millionaire ($1,000,000) is to a Thousandaire ($1000) as a Billionaire is to a Millionaire. E.g. they have as much wealth as a thousand of the former "tier".