Convert everything into meter first.
1. 36,000,000 mm = 36,000 m
2. 500 yards = 500*0.9144 = 457.2 m
3. 2140 inches = 2140*0.0254 = 54.356 m
4. 1.3 km = 1300 m
5. 3240 feet = 3240*0.3048 = 987.55 m
6. 455 meters
7. 5325 cm = 53.25 m
8. 125 decimeters = 12.5 m
9. 1 gigameter = 1,000,000,000 m
10. 4 miles = 4*1609.344 = 6436 m

So we can order in terms of increasing length:
1. 125 decimeters (12.5 m)
2. 5325 cm (53.25 m)
3. 2140 inches (54.356 m)
4. 455 meters
5. 500 yards (457.2 m)
6. 3240 feet (987.55 m)
7. 1.3 km (1300 m)
8. 4 miles (6436 m)
9. 36,000,000 mm (36,000 m)
10. 1 gigameter (1,000,000,000 m)