The result of your conversion between dekatherm and petajoule appears here
To convert between Dekatherm and Petajoule you have to do the following:
First divide 1.055057e+09 / 1.0e+15 = 0.00000106
Then multiply the amount of Dekatherm you want to convert to Petajoule, use the chart below to guide you.
Symbol: dathm
No description
Symbol: PJ
No description