Mathematics · Data Interpretation

In a given year, 2,50,000 foreign tourists visited India. If the age-wise distribution of data applies uniformly across all countries, and American tourists constitute 20% of total tourists while American tourists below 10 years constitute 15% of American tourists, and other tourists above 50 years constitute 45% of total tourists, what is the ratio of American tourists below 10 years to the other tourists above 50 years?