6 divided by 4.2 = 1.4285, so the increase was 42.85%
Once you have 10 one hundred million's you will have reached 1 billion.
The number is given to the nearest hundredths.
Extend
Conjecture
Conjecture.
+42.86%
In 1804, the world's population reached 1 billion. In 1850, half way through the Victorian times, the world's population reached 1.2 billion. Finally, in 1900, the world's population reached 1.6 billion.
The world population reached 4 billion around 1974.
The world population in 1800 was 978,000,000. By 1850 the world population had reached roughly 1,262,000,000 (1.2 Billion). By 1900, it had reached roughly 1.65 billion.
The world's population reached 4 billion in 1974.
he world population reached 1 billion for the first time in 1804.
The world population reached 1 billion in approximately 1804.
The world population reached four billion in the 1970s.
The world's population reached one billion in the early 19th century, around 1804.
The world population reached 3 billion in the year 1960.
The world population reached one billion in 1804 and seven billion in 2012. That's a difference of 208 years.
On October 31, 2011, the world reached 7 billion people.