"Acted on" means took action in response to advice, information, or a request. It can also mean had an effect on something, as when a drug acted on the body.
There was no silver bullet that could have prevented the 11 September attacks. There was nothing demonstrating or showing that something was coming in the United States. If there had been something, we would have acted on it. Condoleezza Rice
It is incumbent on every generation to pay its own debts as it goes. A principle which if acted on would save one-half the wars of the world. Thomas Jefferson
America has believed that in differentiation, not in uniformity, lies the path of progress. It acted on this belief; it has advanced human happiness, and it has prospered. Louis Brandeis
Governments have never learned anything from history, or acted on principles deducted from it. Georg Wilhelm Friedrich Hegel
For if enough people were really convinced that growth should be halted, and if they acted on that conviction, then billions of others might be deprived of any realistic hope of gaining the opportunities now enjoyed by the more fortunate. Herman Kahn
He had lived and acted on the assumption that he was alone, and now he saw that he had not been. What he had done made others suffer. No matter how much he would long for them to forget him, they would not be able to. His family was a part of him, not only in blood, but in spirit. Richard Wright