Final answer:
The company that ranked number one in terms of worldwide ad spending for the year 2013 was Procter & Gamble (P&G). Other top companies in terms of ad spending in 2013 include Samsung Electronics, L'Oreal, Coca-Cola, and General Motors.
Step-by-step explanation:
The company that ranked number one in terms of worldwide ad spending for the year 2013 was Procter & Gamble (P&G). P&G spent a total of $4.6 billion on advertising in 2013, making them the largest spender globally.
Other top companies in terms of ad spending in 2013 include Samsung Electronics, L'Oreal, Coca-Cola, and General Motors. These companies also allocated significant budgets towards advertising to promote their products and services worldwide.
It is important to note that these rankings are based on the information available for the year 2013 and may have changed in subsequent years.