Let see economy as a car,
It's not about 11 trillion or 19 trrillion, it is all about the shock and pressure a economy can handle. China's economy is a Limousin cruising on a highway, USA economy is also a Limousin on a highway but with no fuel and India' economy is a Tata Nano in a typical chaotic street.
All this type of economy has its advantage and disadvantage, While China will grow/cruise at whatever speed they can but there is always a fear of end of the highway, USA's economy can already see the end of their highway and India is still lost in the street.
But India is always prepared for when to apply brakes, when to accelerate and when to stop and can even run on a single lane road, China and USA can't afford it, they have a Limousin and they need a proper road for them.
All this was explained by an economist from Sweden in Sweden, so he was in no pressure to please anybody.